Question

What are the respective concentrations (m) of mg2 and c2h3o2- afforded by dissolving 0.600 mol mg(c2h3o2)2 in water and diluting to 135 ml?

Answer 1

1 mol mag acetate dissociates into 1 mol Mg ion and 2 mols acetate ions in water. Therefore, if 0.6 mol mg of acetate is dissolved in 0.135 literss of water, we will have 0.6/0.135 = 4.44 moles / lit Mg2+ ions and 0.6*2/0.135 = 8.88 moles / liter C2H3O2- ions.