A 14.8-g sample of potassium sulfate is dissolved in 350.0 mL of solution. Calculate the molarity of this solution.
A) 11.8 M
B) 5.18 M
C) 0.0297 M
D) 0.243 M
E) none of these

Question

Quizplus · Accepted Answer

Molarity (M) = moles of solute / liters of solution

First, we need to calculate the moles of potassium sulfate:

moles = mass / molar mass = 14.8 g / 174.26 g/mol = 0.0849 mol

Next, we need to convert the volume of the solution to liters:

350.0 mL = 0.3500 L

Finally, we can calculate the molarity of the solution:

Molarity = moles / liters = 0.0849 mol / 0.3500 L = 0.243 M

Therefore, the answer is D) 0.243 M.

A 148-G Sample of Potassium Sulfate Is Dissolved in 350