A solution is prepared by dissolving 15.0 g of NH₃ in 250.0 g of water.The density of the resulting solution is 0.974 g/mL.The molarity of NH₃ in the solution is ________ M. A)0.00353 B)0.882 C)60.0 D)3.24 E)3.53

Question

Quizplus · Accepted Answer

First, we need to calculate the volume of the solution using the mass and density given: Volume = mass/density = 265.13 mL Next, we need to convert the mass of NH₃ to moles: Moles of NH₃ = 15.0 g / 328.24 g/mol = 0.0457 mol Finally, we can calculate the molarity of the solution: Molarity = moles of NH₃ / volume of solution in L Molarity = 0.0457 mol / (0.26513 L x 10^-3) = 3.24 M Therefore, the answer is D.

A Solution Is Prepared by Dissolving 15