Mg + 2CH3COOH = (CH3COO)2Mg + H2
n(Mg)=24/24 = 1 моль, значит n(CH3COOH)= 2*n(Mg)= 2 моль
m(CH3COOH)в-ва=n(CH3COOH) * M(CH3COOH) = 2 * 60 = 120 грамм
m(CH3COOH) р-ра = m(CH3COOH)в-ва / w(CH3COOH) = 120/0,4 = 300 грамм
Mg + 2CH3COOH = (CH3COO)2Mg + H2
n(Mg)=24/24 = 1 моль, значит n(CH3COOH)= 2*n(Mg)= 2 моль
m(CH3COOH)в-ва=n(CH3COOH) * M(CH3COOH) = 2 * 60 = 120 грамм
m(CH3COOH) р-ра = m(CH3COOH)в-ва / w(CH3COOH) = 120/0,4 = 300 грамм