What is the concentration, in mass percent, of a solution prepared from 50.0 g NaCl and 150.0 g of water?
A)0.250%
B)33.3%
C)40.0%
D)25.0%
E)3.00%

Question

Quizplus · Accepted Answer

Mass percent is calculated as (mass of solute / total mass of solution) x 100. Here, the total mass of the solution is 50.0 g NaCl + 150.0 g water = 200.0 g. The mass percent is (50.0 g / 200.0 g) x 100 = 25.0%.

What Is the Concentration, in Mass Percent, of a Solution