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1)
a)
$C_2H_4 + H_2O \xrightarrow{t^o,xt} C_2H_5OH$
$C_2H_5OH + O_2 \xrightarrow{men\ giấm} CH_3COOH + H_2O$
$CH_3COOH + NaOH \to CH_3COONa + H_2O$
b)
$CH_3COOH + C_2H_5OH \buildrel{{H_2SO_4}}\over\rightleftharpoons CH_3COOC_2H_5 + H_2O$
2)
a) $n_{CO_2} = \dfrac{16,8}{22,4} = 0,75(mol)$
$C_6H_{12}O_6 \xrightarrow{men\ rượu} 2CO_2 + 2C_2H_5OH$
$n_{glucozo} = \dfrac{1}{2}n_{CO_2} = 0,375(mol)$
$m_{glucozo} = 0,375.180 = 67,5(gam)$
b) $n_{C_2H_5OH} = n_{CO_2} = 0,75(mol)$
$m_{C_2H_5OH} = 0,75.46 = 34,5(gam)$
$V_{C_2H_5OH} = \dfrac{34,5}{0,8}= 43,125(ml)$
Câu 1:
a, \(C_2H_4+H_2O\underrightarrow{t^o,xt}C_2H_5OH\)
\(C_2H_5OH+O_2\underrightarrow{mengiam}CH_3COOH+H_2O\)
\(CH_3COOH+Na\rightarrow CH_3COOH+\dfrac{1}{2}H_2\)
b, \(CH_3COOH+C_2H_5OH⇌CH_3COOC_2H_5+H_2O\) (xt: H2SO4 đặc, to)
Câu 2:
a, \(n_{CO_2}=\dfrac{16,8}{22,4}=0,75\left(mol\right)\)
\(C_6H_{12}O_6\underrightarrow{t^o,xt}2C_2H_5OH+2CO_2\)
Theo PT: \(n_{C_6H_{12}O_6}=\dfrac{1}{2}n_{CO_2}=0,375\left(mol\right)\)
\(\Rightarrow m_{C_6H_{12}O_6}=0,375.180=67,5\left(g\right)\)
b, \(n_{C_2H_5OH}=n_{CO_2}=0,75\left(mol\right)\Rightarrow m_{C_2H_5OH}=0,75.46=34,5\left(g\right)\)
\(\Rightarrow V_{C_2H_5OH}=\dfrac{34,5}{0,8}=43,125\left(ml\right)\)
C2H5OH + O2 ---men giấm--> CH3COOH + H2O
2CH3COOH + 2Na ----> 2CH3COONa + H2
b.
CaC2 + 2H2O ---> C2H2 + Ca(OH)2
C2H2 + H2 -xt,to--> C2H4
C2H4 + H2O ---> C2H5OH
2C2H5OH + Na ---> 2C2H5ONa + H2
\(C_2H_4+H_2O\underrightarrow{H^+,t^o}C_2H_5OH\)
\(C_2H_5OH+O_2\underrightarrow{men.giấm}CH_3COOH+H_2O\)
\(CH_3COOH+C_2H_5OH\underrightarrow{H_2SO_{4\left(đ\right)},t^o}CH_3COOC_2H_5+H_2O\)
\(CH_3COOC_2H_5+NaOH\underrightarrow{t^o}CH_3COONa+C_2H_5OH\)
C2H4 → C2H5OH → CH3COOH → CH3COOC2H5 → C2H5OH
(1) C2H4 + H2O \(\underrightarrow{axit}\) C2H5OH
(2) C2H5OH + O2 \(\xrightarrow[25^0-30^0C]{mengiam}\) CH3COOH + H2O
(3) CH3COOH + C2H5OH → CH3COOC2H5 + H2O
(4) CH3COOC2H5 + NaOH \(\underrightarrow{t^0}\) CH3COONa + C2H5OH
(1) \(C_2H_2+H_2\underrightarrow{t^o,Pd}C_2H_4\)
(2) \(C_2H_4+H_2O\underrightarrow{t^o,xt}C_2H_5OH\)
(3) \(C_2H_5OH+O_2\underrightarrow{^{mengiam}}CH_3COOH+H_2O\)
(4) \(2CH_3COOH+CuO\rightarrow\left(CH_3COO\right)_2Cu+H_2O\)
(1) \(C_2H_2+H_2\underrightarrow{t^o,Pd}C_2H_4\)
(2) \(C_2H_4+H_2O\underrightarrow{t^o,xt}C_2H_5OH\)
(3) \(C_2H_5OH+O_2\underrightarrow{^{mengiam}}CH_3COOH+H_2O\)
(4) \(2CH_3COOH+CuO\rightarrow\left(CH_3COO\right)_2Cu+H_2O\)
a, \(C_2H_4+3O_2\rightarrow2CO_2+2H_2O\) ( đk : nhiệt độ )
b, \(C_2H_5OH+CH_3COOH\rightarrow CH_3COOC_2H_5+H_2O\) ( Dk : Nhiệt độ kèm chất xúc tác là H2SO4 đặc )
c, \(2CH_3COOH+Na_2O\rightarrow2CH_3COONa+H_2O\)
d, \(C_6H_6+Br_2\rightarrow C_6H_5Br+HBr\) ( Chất xúc tác là bột Fe )
e, \(2CH_3COOH+Cu\left(OH\right)_2\rightarrow\left(CH_3COO\right)_2Cu+2H_2O\)
f, \(2C_2H_5OH+2Na\rightarrow2C_2H_5ONa+H_2\uparrow\)
g, \(C_6H_{12}O_6+Ag_2O\rightarrow C_6H_{12}O_7+2Ag\) ( đk : khí NH3 )
h, \(C_6H_6+3Cl_2\rightarrow C_6H_6Cl_6\) ( đk : Ánh sáng )
j, \(2CH_3COO+H_2SO_4\rightarrow2CH_2COOH+SO_4\)
l, \(C_2H_6+Cl_2\rightarrow HCl+C_2H_5Cl\) ( DK : AS)
q, \(CH_2=CH_2+Br_2\rightarrow CH_2Br-CH_2Br\)
C2H4 + H2O - 1700C , H2SO4-> C2H5OH
C2H5OH + O2 -men giấm-> CH3COOH + H2O
CH3COOH + C2H5OH <-H2SO4đ, to-> CH3COOC2H5 + H2O
CH3COOC2H5 + NaOH => CH3COONa + C2H5OH
a)
C2H4 + H2O \(\xrightarrow{t^o,xt}\) C2H5OH
C2H5OH + O2 \(\xrightarrow{men\ giấm}\) CH3COOH + H2O
CH3COOH + C2H5OH ⇌ CH3COOC2H5 + H2O
CH3COOC2H5 + KOH → CH3COOK + C2H5OH
b)
(1) 2C2H5OH + 2Na → 2C2H5ONa + H2
(2) 2CH3COOH + Mg → (CH3COO)2Mg + H2
(3) CH3COOC2H5 + NaOH → CH3COONa + C2H5OH
(4) (RCOO)3C3H5 + 3H2O ⇌ 3RCOOH + C3H5(OH)3
1/ Phản ứng este hóa:
Rượu (nhóm OH) + axit (nhóm COOH) ==>(to,axit) muối + nước
2/ a/ C2H4 + H2O => (140oC, H2SO4đ) C2H5OH
C2H5OH + O2 => (men giấm) CH3COOH + H2O
2CH3COOH + Zn => (CH3COO)2Zn + H2
b/ C6H12O6 => (men rượu,to) 2CO2 + 2C2H5OH
C2H5OH + O2 => (men giấm) CH3COOH + H2O
CH3COOH + C2H5OH \(\Leftrightarrow\) (H2SO4,đ,to) CH3COOC2H5 + H2O (pứ este hóa)
1/ Phản ứng este hóa là phản ứng giữa axit và rượu trong điều kiện nhiệt độ, có H2SO4 đặc làm xúc tác.
VD: C2H5OH + CH3COOH <-H2SO4đ,to-> CH3COOC2H5 + H2O
2/
a) C2H4 + H2O -axit-> C2H5OH
C2H5OH + O2 -men giấm-> CH3COOH + H2O
2CH3COOH + Zn --> (CH3COO)2Zn + H2
b) C6H12O6 -men rượu,to> 2C2H5OH + 2CO2
C2H5OH + O2 -men giấm-> CH3COOH + H2O
CH3COOH + C2H5OH <-H2SO4đ,to-> CH3COOC2H5 + H2O