a)
$(C_6H_{10}O_5 + nH_2O \xrightarrow{t^o,xt} nC_6H_{12}O_6$
$C_6H_{12}O_6 \xrightarrow{t^o,xt}2CO_2 + 2C_2H_5OH$
b)
n tinh bột = 10.80%/162n = 4/81n (kmol)
- Giai đoạn 1 :
n glucozo = n . n tinh bột pư = n . 4/81n . 80% = 16/405(kmol)
- Giai đoạn 2 :
n C2H5OH = 2n glucozo pư = 2 . 16/405 . 75% = 8/135(kmol)
m C2H5OH = 46 . 8/135 = 2,726(kg) = 2726(gam)
V C2H5OH = m/D = 2726/0,807 = 3377,94(ml)
V cồn 96o = 3377,94.100/96 = 3518,6875(ml)
Gi