What is the molar concentration of a solution prepared by dissolving 4.25 grams of sodium nitrate, NaNO₃, in water to produce 250 mL of solution?

Question

Quizplus · Accepted Answer

To find the molar concentration, first calculate the moles of NaNO3. The molar mass of NaNO3 is approximately 85 g/mol. Moles = 4.25 g / 85 g/mol = 0.05 moles. The volume of the solution is 250 mL, which is 0.250 L. Molarity = moles/volume = 0.05 moles / 0.250 L = 0.200 M.

What Is the Molar Concentration of a Solution Prepared by Dissolving