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

Question

Quizplus · Accepted Answer

The mass percent (m/m) is calculated by dividing the mass of the solute (NaCl) by the total mass of the solution (NaCl + water) and multiplying by 100. Here, (50.0 g / (50.0 g + 150.0 g)) * 100 = 25.0%.

What Is the Concentration,in Mass Percent (M/m),of a Solution Prepared