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\(C_2H_4+H_2O\underrightarrow{^{170^0C,H_2SO_4}}C_2H_5OH\)
\(C_2H_5OH+O_2\underrightarrow{^{\text{men giấm}}}CH_3COOH+H_2O\)
\(CH_3COOH+C_2H_5OH⇌CH_3COOC_2H_5+H_2O\left(Đk:H_2SO_{4\left(đ\right)},t^0\right)\)
\(2CH_3COOC_2H_5+Ca\left(OH\right)_2\underrightarrow{^{t^0}}\left(CH_3COO\right)_2Ca+2C_2H_5OH\)
\(\left(CH_3COO\right)_2Ca+Na_2CO_3\rightarrow2CH_3COONa+CaCO_3\downarrow\)
\(C_2H_4 + H_2O \xrightarrow{t^o,xt} C_2H_5OH\\ C_2H_5OH + O_2 \xrightarrow{men\ giấm} CH_3COOH + H_2O\\ CH_3COOH + C_2H_5 \rightleftharpoons CH_3COOC_2H_5 + H_2O\\ 2CH_3COOC_2H_5 + Ca(OH)_2 \to (CH_3COO)_2Ca + 2C_2H_5OH\\ (CH_3COO)_2Ca + Na_2CO_3 \to CaCO_3 + 2CH_3COONa\)
(1) \(C_6H_{12}O_6\underrightarrow{t^o,xt}2C_2H_5OH+2CO_2\)
(2) \(C_2H_5OH+O_2\underrightarrow{^{mengiam}}CH_3COOH+H_2O\)
(3) \(CH_3COOH+NaOH\rightarrow CH_3COONa+H_2O\)
(4) \(CH_3COONa+NaOH\underrightarrow{^{CaO,t^o}}CH_4+Na_2CO_3\)
1. C6H12O6-->C2H5OH-->CH3COOH--->CH3COOC2H5
C6H12O6->2C2H5OH + 2CO2 (1)
C2H5OH + O2 -> CH3COOH + H2O (2)
CH3COOH + C2H5OH->CH3COOC2H5 + H2O (3)
2.,CaC2 + H2O -> C2H2 + Ca(OH)2 (1)
C2H2 + H2 -> C2H4 (2)
n(C2H4)-> (C2H4)n ( trùng hợp )
1)
Hai phương pháp là:
1 Dùng quỳ tím: Axit axetic làm quỳ tím hóa đỏ Rượu etylic không làm quỳ tím đổi màu
2 Dùng Na2CO3 hoặc CaCO3: CH3COOH cho khí CO2 thoát ra C2H5OH không có phản ứng
2)
\(C_2H_4+H_2O\rightarrow C_2H_5OH\)
\(C_2H_5OH+O_2\rightarrow CH_3COOH+H_2O\)
\(C_2H_5OH+CH_3COOH⇌H_2O+CH_3COOC_2H_5\)
C\(_2\)H\(_4\) + H\(_2\)O → C\(_2\)H\(_5\)OH (axit ,t\(^o\))
C\(_2\)H\(_5\)OH + O\(_2\) → CH\(_3\)COOH + H\(_2\)O (men giấm ,t\(^o\))
CH\(_3\)COOH + C\(_2\)H\(_5\)OH ⇌ CH\(_3\)COOC\(_2\)H\(_5\) + H\(_2\)O (H2SO4 đặc ,t\(^o\))
\(a) C_6H_{12}O_6 \xrightarrow{t^o,xt} 2CO_2 + 2C_2H_5OH\\ C_2H_5OH + O_2 \xrightarrow{men\ giấm} CH_3COOH + H_2O\\ CH_3COOH + C_2H_5OH \to CH_3COOC_2H_5 + H_2O\\ b) C_{12}H_{22}O_{11} + H_2O \xrightarrow{H^+}C_6H_{12}O_6 + C_6H_{12}O_6\\ C_6H_{12}O_6 \xrightarrow{t^o,xt} 2CO_2 + 2C_2H_5OH\\C_2H_5OH + O_2 \xrightarrow{men\ giấm} CH_3COOH + H_2O\\ CH_3COOH + NaOH \to CH_3COONa + H_2O\\ c) CH_3COOC_2H_5 + NaOH \to CH_3COONa + C_2H_5OH\\ d) 2CH_3COOC_2H_5 + Ca(OH)_2 \to (CH_3COO)_2Ca + 2C_2H_5OH\)
\((CH_3COO)_2Ca + H_2SO_4 \to CaSO_4 + 2CH_3COOH\)
1/ 1/ (-C6H10O5-)n + nH2O => (H2SO4đ,to) nC6H12O6
C6H12O6 => (men rượu,to) 2CO2 + C2H5OH
C2H5OH + O2 => (men giấm) CH3COOH + H2O
CH3COOH + C2H5OH => (H2SO4đ,to) <pứ hai chiều> CH3COOC2H5 + H2O
2/ C2H4 + H2O => (140oC,H2SO4đ) C2H5OH
C2H5OH + O2 => (men giấm) CH3COOH + H2O
CH3COOH + C2H5OH => (H2SO4đ,t0) <pứ hai chiều> CH3COOC2H5 + H2O
CH3COOC2H5 + NaOH => (to) CH3COONa + C2H5OH
câu1
1/
(C6H10O5)n+ nH2O\(\xrightarrow[to]{axit}\) nC6H12O6
C6H12O6\(\xrightarrow[30-35\cdot C]{enzim}\) 2C2H5OH+ 2CO2\(\uparrow\)
C2H5OH+ O2\(\xrightarrow[giấm]{men}\) CH3COOH+ H2O
C2H5OH+ CH3COOH\(\xrightarrow[to]{H2SO4đặc}\) CH3COOC2H5+ H2O
2/
C2H4+ H2O\(\xrightarrow[]{axit}\) C2H5OH
C2H5OH+ O2\(\xrightarrow[giấm]{men}\) CH3COOH+ H2O
C2H5OH+ CH3COOH\(\xrightarrow[to]{H2SO4đặc}\) CH3COOC2H5+ H2O
CH3COOC2H5+ H2O\(\xrightarrow[]{axit}\) C2H5OH+ CH3COOH
câu 2
a/
có: Vrượu= \(\frac{500.60}{100}\)= 300( ml)
b/
có: mrượu= V. D= 300. 0,8= 240( g)
(1) 2C2H5OH + O2 \(\underrightarrow{mengiam}\) 2CH3COOH + 2H2O
(2) CH3COOH + C2H5OH ⇌ CH3COOC2H5 + H2O (xt: axit, to )
(3) CH3COOC2H5 + NaOH → CH3COONa + C2H5OH
CH3COONa + HCl → CH3COOH + NaCl