Question

An aqueous magnesium chloride solution is made by dissolving 6.90 moles of MgCl 2 in sufficient water so that the final volume of the solution is 4.70 L . Calculate the molarity of the MgCl 2 solution.

Answer 1

Answer:

The molarity of the magnesium chloride solution is 1.47 mol/L.

Explanation:

Molarity is defined as number of moles of compounds present in a unit liter of volume of the solution

$Molarity=\frac{\text{Moles of compound}}{\text{Volume of the solution(L)}}$

Moles of magnesium chloride = 6.90 moles

Volume of solution = 4.70 L

$Molarity=\frac{6.90 mol}{4.70 L}=1.47 mol/L$

The molarity of the magnesium chloride solution is 1.47 mol/L.