Question

A mixture of magnesium chloride and magnesium sulphate is known to contain 0.6 moles of chloride ions and 0.2 moles of sulphate ions. The number of moles of magnesium ions present is?

Answer 1

Mixture contain = 3gCl₂ + MgSO₄

∵ Mixture contains = 0.6 mole chloride ions and 0.2 mole sulphate ions.

∴ Mixture contain - 0.3 mole MgCl₂ and 0.2 mole MgSO₄.

∴ Number of moles of Mg⁺² ion present in mixture = 0.3 + 0.2 

= 0.5 mole