Ответ:
дано
m(ppaCH3COOH) = 17 g
W( CH3COOH) = 60%
--------------------------
m( CH3COOCH3) - ?
m(CH3COOH) = 17*60%/100 = 4.2 g
CH3COOH+CH3OH-->CH3COOCH3+H2O
M(CH3COOH) = 60 g/mol
n(CH3COOH) = m/M = 4.2 / 60 = 0.07 mol
n(CH3COOH) = n(CH3COOCH3) = 0.07 mol
M(CH3COOCH3) = 74 g/mol
m(CH3COOCH3) = n*M = 0.07 * 74 = 5.18 g
ответ 5.18 г
Объяснение: