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\(V_{C_2H_5OH}=\dfrac{50.23}{100}=11,5\left(ml\right)\\ m_{C_2H_5OH}=11,5.0,8=9,2\left(g\right)\\ n_{C_2H_5OH\left(tt\right)}=\dfrac{9,2}{46}=0,2\left(mol\right)\\ n_{C_2H_5OH\left(lt\right)}=\dfrac{0,2}{80\%}=0,25\left(mol\right)\)
PTHH:
\(C_6H_{12}O_6\underrightarrow{\text{men rượu}}2C_2H_5OH+2CO_2\)
0,125 <----------------- 0,25
\(m_{C_6H_{12}O_6}=0,125.180=22,5\left(g\right)\)
a)
\(n_{CO_2}=\dfrac{5,6}{22,4}=0,25\left(mol\right)\)
PTHH: C6H12O6 --men rượu--> 2C2H5OH + 2CO2
0,125<---------------------0,25<-------0,25
=> \(m_{C_2H_5OH}=0,25.46=11,5\left(g\right)\)
b) \(m_{C_6H_{12}O_6\left(pư\right)}=0,125.180=22,5\left(g\right)\)
=> \(m_{C_6H_{12}O_6\left(tt\right)}=\dfrac{22,5.100}{80}=28,125\left(g\right)\)
c) \(V_{C_2H_5OH}=\dfrac{11,5}{0,8}=14,375\left(ml\right)\)
=> \(V_{rượu}=\dfrac{14,375.100}{25}=57,5\left(ml\right)\)
a)n glucozo = 90/180 = 0,5(kmol)
n glucozo pư = 0,5.70% = 0,35(kmol)
$C_6H_{12}O_6 \xrightarrow{t^o,xt} 2CO_2 + 2C_2H_5OH$
n C2H5OH = 2n glucozo = 0,35.2 = 0,7(kmol)
m C2H5OH = 0,7.46 = 32,2(kg)
b)$(C_6H_{10}O_5)_n + nH_2O \xrightarrow{t^o,xt}nC_6H_{12}O_6$
$C_6H_{12}O_6 \xrightarrow{t^o,xt} 2CO_2 + 2C_2H_5OH$
n tinh bột = 2/162n = 1/81n(kmol)
n glucozo = 80% . n . 1/81n = 4/405(kmol)
n C2H5OH = 80% . 2. 4/405 = 32/2025(kmol)
m C2H5OH = 46.32/2025 = 0,73(kg)
\(n_{C_6H_{12}O_6}=\dfrac{90}{180}=0.5\left(kmol\right)\)
\(n_{C_6H_{12}O_6\left(pư\right)}=0.5\cdot0.7=0.35\left(kmol\right)\)
\(C_6H_{12}O_6\underrightarrow{^{\text{men rượu}}}2C_2H_5OH+2CO_2\)
\(0.35........................0.7\)
\(m_{C_2H_5OH}=0.7\cdot46=32.2\left(kg\right)\)
\(b.\)
\(C_{12}H_{22}O_{11}\underrightarrow{^{t^0,xt}}C_6H_{12}O_6+C_6H_{12}O_6\)
\(C_6H_{12}O_6\underrightarrow{^{\text{men rượu}}}2C_2H_5OH+2CO_2\)
\(n_{C_2H_5OH}=\dfrac{12\cdot n_{C_{12}H_{22}O_{11}}}{2}\cdot80\%=\dfrac{12\cdot\dfrac{1}{171}}{2}\cdot80\%=\dfrac{8}{285}\left(kmol\right)\)
\(m_{C_2H_5OH}=\dfrac{8}{285}\cdot46=1.29\left(kg\right)\)
\(n_{CO_2}=\dfrac{5,6}{22,4}=0,25\left(mol\right)\)
PTHH: \(C_6H_{12}O_6\dfrac{_{memruou}}{30^0-35^0C}>2C_2H_5OH+2CO_2\uparrow\)
0,25 0,25 0,25 (mol)
a) \(m_{C_2H_5OH}=0,25.46=11,5\left(g\right)\)
b) \(m_{C_6H_{12}O_6}=0,25.180.90\%=40,5\left(g\right)\)
V C 2 H 5 OH = 50.4/100 = 2l
→ m C 2 H 5 OH = 2.1000.0,8 = 1600g
Phương trình hóa học :
C 2 H 5 OH + O 2 → CH 3 COOH + H 2 O
46 gam 60 gam
1600 gam x
x = 1600x60/46
Vì hiệu suất đạt 80% → m CH 3 COOH = 1600.60.80/(46.100) = 1669,6g
→ m giấm = 1669,6/5 x 100 = 33392 (gam) = 33,392 kg