CH3OH+C2H5COOH=C2H5COOCH3+H2O
C2H5COOCH3+H2O=C2H5COOH+CH3OH
2)
2 CH3COOH+1 CuO=(CH3COO)2Cu+H2O
2 моль CH3COOH --------1 моль CuO
M(CuO)=80
n(CuO)=16:80=0.2 моль
2 моль CH3COOH --------1 моль CuO
х моль--------------------------0.2 моль
х=0.4 моль CH3COOH
M(CH3COOH)=60
m(CH3COOH)=0.4*60=24 г