What is the molarity of a solution formed by dissolving 45 g NaOH in water to give a final volume of 250 mL?

Question

Quizplus · Accepted Answer

To find the molarity, first calculate the number of moles of NaOH. The molar mass of NaOH is approximately 40 g/mol. So, 45 g NaOH is 45/40 = 1.125 moles. The volume of the solution is 250 mL, which is 0.250 L. Molarity (M) is moles/volume in liters, so 1.125 moles / 0.250 L = 4.5 M.

What Is the Molarity of a Solution Formed by Dissolving