Determine the molarity of a solution made by dissolving 11.7 g of NaNO₃ in water where the final volume of the solution is 250.0 mL.

Question

Quizplus · Accepted Answer

1. Calculate the number of moles of NaNO₃: mass = 11.7 g molar mass of NaNO₃ = 65.01 g/mol moles = mass/molar mass = 0.180 moles 2. Calculate the volume of the solution in liters: volume = 250.0 mL = 0.250 L 3. Calculate the molarity of the solution: molarity = moles/volume = 0.180 moles/0.250 L = 0.72 M Therefore, the molarity of the solution is 0.551 M, which is option B.

Determine the Molarity of a Solution Made by Dissolving 11