Understanding Molarity

Molarity (M) is a unit of concentration that represents the number of moles of solute dissolved per liter of solution.

Formula

Molarity (M) = Moles of solute / Liters of solution

Calculation

* Moles of solute: 5.0 moles KCl

* Liters of solution: 2.0 L

Molarity = 5.0 moles / 2.0 L = 2.5 M

Therefore, the molarity of the solution is 2.5 M.