CH3COONa + H2O(H - OH) ---> CH3COOH + NaOH

n(CH3COONa) = 100г/82г/моль = 1.22 моль

n(CH3COOH) = n(CH3COONa) = 1.22 моль

m(CH3COOH) = 1.22 моль * 60 г/моль = 73.2 г.