СН3СНО+Сu(OH)2=CH3COOH+Cu+H2O
CH3COOH+CH3-CH2-OH=CH3COOCH2CH3 + H2O
2H₂ + O₂ = 2H₂O
n(H₂)=V÷22,4=11,2÷22,4=0,5моль
n(H₂O)=n(H₂)
m(H₂O)=18×0,5=9г