Bổ sung: rượu etylic

TN1:

`C_2H_5OH+Na->C_2H_5ONa+1/2H_2`

`CH_3COOH+Na->CH_3COONa+1/2H_2`

`->n_{C_2H_5OH}+n_{CH_3COOH}=2n_{H_2}={2,24}/{22,4}.2=0,2(1)`

`46n_{C_2H_5OH}+60n_{CH_3COOH}=10,6(2)`

`(1)(2)->n_{C_2H_5OH}=n_{CH_3COOH}=0,1(mol)`

TN2:

`CO_2+Ca(OH)_2->CaCO_3+H_2O(1)`

`2CO_2+Ca(OH)_2->Ca(HCO_3)_2`

`Ca(HCO_3)_2` $\xrightarrow{t^o}$ `CaCO_3+CO_2+H_2O(2)`

`->n_{CO_2}=n_{CaCO_3(1)}+2n_{CaCO_3(2)}={10+20.2}/{100}=0,5(mol)`

BTNT C: `n_{C_2H_5OH}+n_{CH_3COOH}=1/2n_{CO_2}=0,25(mol)`

Mà `n_{C_2H_5OH}:n_{CH_3COOH}=0,1:0,1=1:1`

`->n_{C_2H_5OH}=n_{CH_3COOH}=0,125(mol)`

`->m=0,125(46+60)=13,25(g)`