Question

Viết PTHH theo sơ đồ:

\(CaC_2\underrightarrow{\left(1\right)}C_2H_2\underrightarrow{\left(2\right)}C_2H_4\underrightarrow{\left(3\right)}C_2H_5OH\underrightarrow{\left(4\right)}CH_3COOH\underrightarrow{\left(5\right)}CH_3COOC_2H_5\)

Answer 1

(1) CaC2 + 2H2O => C2H2 + Ca(OH)2

(2) C2H2 + H2 => (t^o,Pd) C2H4

(3) C2H4 + H2O => (t^o,H2SO4đ) C2H5OH

(4) C2H5OH + O2 => (men giấm) CH3COOH + H2O

(5) CH3COOH + C2H5OH => <pứ hai chiều> (xt:H2SO4đ, t^o) CH3COOC2H5 + H2O

Answer 2

\(\left(1\right)CaC_2+2H_2O\rightarrow Ca\left(OH\right)_2+C_2H_2\)

\(\left(2\right)C_2H_2+H_2\xrightarrow[to]{Ni}C_2H_4\)

\(C_2H_4+2H_2O\xrightarrow[30-35^oC]{men.rượu}C_2H_5OH+H_2O\)

\(C_2H_5OH+O_2\xrightarrow[men.giấm]{30-35^oC}CH_3COOH+H_2O\)

\(C_2H_5OH+CH_3COOH\xrightarrow[\leftarrow]{H_2SO_4đ,t^o}CH_3COOC_2H_5+H_2O\)

Answer 3

1) CaC2 + 2H2O -> Ca(OH)2 + C2H2

2) C2H2 + H2 -> C2H4 (đk: Ni ; t^o)

3)C2H4 + 2H2O --> C2H5OH (ĐK: t^o)

4) C2H5OH + O2 -> CH3COOH + H2O (ĐK: lên men)

5) CH3COOH + C2H5OH -> CH3COOC2H5 + H2O

(ĐK: H2SO4 đặc ; t^o)