1). 2H2+O2=2H2O;
2). 2Zn+O2=2ZnO;
3). CuO+H2=Cu+H2O;
4). CuO+2HCl=CuCl2+H2O;
5). Zn+2HCl=ZnCl2+H2.
CH3COOH+C2H5OH---CH3COOC2H5+H2O
N(CH3COOH)=3.6/(12*2+4+16*2)=0.06 моль
N(CH3COOC2H5)=N(CH3COOH)=0.06 моль
m(CH3COOC2H5)=0.06*(12*4+16*2+8)=5.28 г
W=4.5/5.28*100%=85,2%
Ответ 85,2 %
В приложении..........................................................................