on tap hoc ky 2 hoa hoc 9

<span class='text_page_counter'>(1)</span>ÔN TẬP HỌC KỲ II NĂM HỌC 2013 -2014 I/ PHẦN LÝ THUYẾT 1/ Viết công thức cấu tạo của các chất sau: CH4; C2H4 ; C2H2 ; C6H6 ; rượu etylic C2H6O ; axitaxetic C2H4O2 , C2H6 ; C4H8 ; C4H9Cl Metyl Clorua, Natri axetat, etyl axetat, Đi brom etan, đi brom etylen, tetra brome tan, brombenzen ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... 2/ Viết các phương trình phản ứng để thực hiện chuỗi biến hóa sau: a) Axetilen → etilen→ rượu etylic → axit axetic → etyl axetat Natri axetat ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... b) Canxi cacbua→ Axetilen → etilen→ rượu etylic → axit axetic → magie axetat .................................................................................................................................................................................................................................................................................... ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... 3/ Bổ túc điều kiện phản ứng, bổ túc và cân bằng các phương trình phản ứng sau: a) CH3COOH + C2H5OH. → C H OH + → CH + Cl → CH COOH + NaOH → + HO → + Na CO → C H OH + →. b) C6H6 c) d) e) f) g) h). →. 2. + Br2. 5. 4. CO2. +. H2O. 2. 3. 2. 2. 2. 5. 3. C2H5OH CH3COONa + + H2. + H2O.

<span class='text_page_counter'>(2)</span> i) CaC2. +. j) CH4. + O2. k) C2H4. + O2. l) C2H2. + O2. m) C6H6. + O2. n) C2H2. + Br2. o) C2H4. + Br2. p) C6H6. + H2. → → →. C2H2. → → → → →. q) CH3COOH + …….. r) CH3COOH + ……….. → →. + H2O. …………. + H2. →. s) CH3COOH + Ca(OH)2 t) C2H4. ……….. +.............  C2 H6. u) 2............ + 5.............  v) ................+. 2O2. w) ......... + 3O2 x) n CH2 = CH2 t0,p,xt. 4CO2. → →. +. 2 H2O. 2H2O +. CO2. 2CO2 +. 3H2O. 4/ Phân biệt các chất bằng phương pháp hóa học a) CH4; C2H4 ; CO2 ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... b) CH4; C2H2 ; CO2 ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... c) C6H6; C2H5OH ; CH3COOH ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... d) C2H5OH ; CH3COOH ; dầu ăn ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ .........................................................................................................................................................................................................................................................................................

<span class='text_page_counter'>(3)</span> ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... e) : C2H4 , Cl2 , CH4 ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... .. e) Bằng phương pháp hóa học (không dùng quỳ tím) hãy nhận biết các chất sau: Rượu etylic, Axit axetic, Etyl axetat. ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... 5/ Quan sát hiện tượng, viết phương trình phản ứng (nếu có) trong các thí nghiệm sau: a) Đưa bình đựng khí metan và clo ra ánh sáng, sau thời gian cho nước vào bình lắc nhẹ rồi thêm vào mẫu quỳ tím? ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... b) Dẫn khí etylen (axetylen) qua bình đựng dd brom ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... c) Đun nóng hỗn hợp benzen với Brom (lỏng, nguyên chất) có mặt bột sắt? ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... d) Cho mẫu natri vào rượu etylic ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... e) Cho mẫu đá vôi vào dd axit axetic ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... f) Cho rượu etylic tác dụng với dung dich axit axetic có thêm một ít axit sunfuric đặc ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... 6/ Xác định và gọi tên các hợp chất hữu cơ trong các hợp chất sau:.

<span class='text_page_counter'>(4)</span> CH4 ; CH3COOH ; Na2HPO4 ; C2H2Br4 ; CH3COONa ; C2H4Br2 (CH3COO)2Mg; Na2CO3 ; CH3COOC2H5 ; C6H6; C2H5OH ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... 7/ Hãy cho biết trong các chất sau:CH4 ; CH3 – CH 3 ; CH ≡ CH ; CH2 = CH2 ; C6 H6 . Chất nào làm mất màu dd brom? Viết phương trình phản ứng? ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... 8/ Cho các chất sau: MgO, KOH, Na2SO4, Cu, Fe, Na2CO3.Chất nào tác dụng được với axit axetic? Viết PTPƯ minh họa. ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... 9/ Trong các chất sau đây: a/ C2H5OH. b/ CH3COOH. c/ CH3CH2CH2-OH. d/ CH3CH2-COOH. Chất nào tác dụng được với Na? NaOH? Mg? CaO? ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... 10/ Từ các nguyên liệu đất đèn (CaC2); nước; và dung dịch brom. Viết các phương trình phản ứng để điều chế C2H2Br2 ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... II/ BÀI TẬP ĐỊNH LƯỢNG.

<span class='text_page_counter'>(5)</span> 1/ Đốt cháy hoàn toàn 13g axetylen a) Viết phương trình phản ứng và tính thể tích không khí cần dùng ở đktc? Biết thể tích oxi bằng 1/5 thể tích không khí. b) Tìm khối lượng khí cacbonic tạo thành, biết hiệu suất phản ứng là 80% ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... 2/ Cho 20 ml rượu 960 tác dung với natri có dư. a) Viết các phương trình phản ứng có thể xảy ra. b) Tìm thể tích, khối lượng của rượu? thể tích và khối lượng của nước đã tham gia phản ứng? biết Drượu = 0,8g/ml và Dnước = 1g/ml c) Tính thể tích khí hidro sinh ra ở đktc ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... 3/ Cho 13 g Zn vào 30 g hỗn hợp rượu etylic và axit axetic a) Viết phương trình phản ứng xảy ra? b) Tính % về khối lượng các chất trong hỗn hợp ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ .........................................................................................................................................................................................................................................................................................

<span class='text_page_counter'>(6)</span> ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... 4/ Dẫn 11,2 lit khí axetylen (đktc) qua bình đựng dd brom thu được sản phẩm tetrabrom etan. a) Viết phương trình phản ứng xảy ra? b) Tính m (khối lượng) sản phẩm thu được (biết H = 90 %) ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... 5/ Cho 6,72 lit (đktc) hỗn hợp gồm metan và etylen đi qua dd Br2 0.1M thì cần 1lit dd để phản ứng vừa đủ a) Viết phương trình phản ứng xảy ra? b) Tính phần trăm về thể tích của hỗn hợp đầu c) Tính thể tích oxi (đktc) cần dùng để đốt cháy hết 6,72 lít hỗn hợp trên ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ .........................................................................................................................................................................................................................................................................................

<span class='text_page_counter'>(7)</span> ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... 6/ Cho 7,5g hỗn hợp gồm rượu etylic và axit axetic tác dụng vừa đủ với 250ml dd NaOH. Sau phản ứng thấy có 6,15g muối tạo thành. a. Tính phần trăm khối lượng các chất trong hỗn hợp đầu ? b. Xác định nồng độ mol của dd NaOH cần dùng? ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... 7/ Cho 5,6l hỗn hợp khí Metan và Axetilen đi qua bình đựng 200ml dd Brom 0,5M. Phản ứng xảy ra dd Brom mất màu da cam hoàn toàn. a. Phương trình phản ứng. b. Tính % thể tích các khí trong hỗn hợp đầu (đkc). c. Sản phẩm tạo thành tên gọi là gì? Có khối lượng là bao nhiêu gam? ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... 8/ Cho 20g hỗn hợp gồm Axitaxetic và Rượu etylic tác dụng với magie dư thì thu được 2,18g khí hidro (đkc). a. Tính thành phần phần trăm khối lượng mỗi chất trong hỗn hợp đầu ? b. Tên và khối lượng sản phẩm tạo thành? ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ .........................................................................................................................................................................................................................................................................................

<span class='text_page_counter'>(8)</span> ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... 9/ Dẫn hỗn hợp khí X (ở đktc) gồm các khí Metan, Etilen lội qua bình đựng nước Brom dư, thì thấy khối lượng bình và có 4,7 lít khí thoát ra khỏi bình. Biết hỗn hợp khí X có thể tích là 6,72 lít. a. Viết các PTHH xảy ra. b. Tính % về thể tích mỗi khí trong hỗn hợp ban đầu. c. Tính khối lượng muối tạo thành ? ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... 10 / Cho 6,72 lit hỗn hợp gồm hai khí là C H4 và C2H2 đi qua bình đựng dung dịch brôm dư thì dùng hết 200 ml dd Br 1M a/ viết phương trình phản ứng b/ tính thể tích mỗi khí c/ Tính thành phần phần trăm theo thể tích của mỗi khí ( ĐKTC ) ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ .........................................................................................................................................................................................................................................................................................

<span class='text_page_counter'>(9)</span> ......................................................................................................................................................................................................................................................................................... 11/Cho 2 lit hỗn hợp gồm CH4 và C2H4 đi qua 500 ml dung dịch Br2 0,1M a / Viết phương trình phản ứng b/ Tinh % về thể tích từng khí có trong hỗn hợp (đkc) c / Tính khối lượng tạo thành C2H4Br2 tạo thành ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... 12/ Cho 23,4 gam C6H6 tác dụng với brôm lỏng. Tính lượng brôm bezen thu được nếu hiệu suất phản ứng là 80% ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... 13/ Cho 2 lit hỗn hợp gồm CH4 và C2H4 đi qua 500 ml dung dịch Br2 0,1M A / Viết phương trình phản ứng B / Tinh % về thể tích từng khí có trong hỗn hợp (đkc) C / Tính khối lượng tạo thành C2H4Br2 tạo thành ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ .........................................................................................................................................................................................................................................................................................

<span class='text_page_counter'>(10)</span> ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... 14/ Để điều chế este etyl axetat , người ta cho 30g Axit Axetic tác dụng với rượu etylic , có mặt Axit sunfuric đặc và đun nhẹ . a) Viết PTHH đã xảy ra . b) Tính thể tích rượu đã phản ứng , biết khối lượng riêng của rượu là 0,8g/ml . c) Tính khối lượng este etyl axetat được tạo thành, biết rằng hiệu suất phản ứng đạt 85% ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... 15/ Cho 5,6lít hỗn hợp gồm Metan và Etilen qua dung dịch Brôm 0,5M , người ta thu được 9,4 g đi brom etan. a)Viết PTPU b)Tính thể tích mỗi khí trong hỗn hợp ban đầu(đktc) c)Tính thể tích dd Brôm cần dùng ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... 15/ cho 50 g dung dịch CH3COOH nông độ 12% tác dụng vừa đủ với dung dịch NaHCO3 1M. a) Tính thể tích dung dịch NaHCO3 đã dùng b) Khí thoát ra dẫn qua nước vôi trong . Tính khối lượng kết tủa tạo thành ........................................................................................................................................................................................................................................................................................ .........................................................................................................................................................................................................................................................................................

<span class='text_page_counter'>(11)</span> ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ 0 0. 16/ Tính thể tích rượu 25 thu được khi pha loãng 250 ml rượu 45. ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ......................................................................................................................................................................................................................................................................................... 17/ Hòa tan 50ml rượu etilic vào 200ml nước. Tính độ rượu thu được ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ ........................................................................................................................................................................................................................................................................................ .........................................................................................................................................................................................................................................................................................

<span class='text_page_counter'>(12)</span>