What mass of salt is formed by the interaction of acetic acid with a mass of 24 g with magnesium oxide?

1. Acetic acid is monobasic, due to the presence of one carboxyl group, therefore, in reactions with metals and their oxides, only hydrogen in this group is replaced:

2CH3COOH + MgO → (CH3COO) 2Mg + H2O;

2. M (CH3COOH) = 12 * 2 + 1 * 4 + 16 * 2 = 60 g / mol;

3.n (CH3COOH) = m: M = 24: 60 = 0.4 mol;

4. according to the equation, magnesium acetate turns out to be half as much as acetic acid, therefore:

n ((CH3COO) 2Mg) = 0.4: 2 = 0.2 mol;

5.M ((CH3COO) 2Mg) = (12 * 2 + 1 * 3 + 16 * 2) * 2 + 24 = 142 g / mol;

6.m ((CH3COO) 2Mg) = n * M = 0.2 * 142 = 28.4 g.

Answer: 28.4 g.