Which of the following concentration measures will change in value as the temperature of a solution changes?
A)mass percent
B)mole fraction
C)molality
D)molarity
E)all of these

Question

Quizplus · Accepted Answer

Only molarity, which is defined as moles of solute per liter of solution, changes with temperature because the volume of a liquid changes with temperature. Mass percent, mole fraction, and molality all only depend on the amount of solute and solvent, which do not change with temperature. Therefore, the correct answer is D) molarity.

Which of the Following Concentration Measures Will Change in Value