At 25.0°C,a solution has a concentration of 3.179 M and a density of 1.260 g/mL.The density of the solution at 50.0°C is 1.249 g/mL.What is the molarity of the solution at 50.0°C?
A)2.545 M
B)3.151 M
C)3.179 M
D)3.230 M

Question

Quizplus · Accepted Answer

As temperature increases, the volume of the solution increases due to thermal expansion, leading to a decrease in molarity. The density change from 1.260 g/mL to 1.249 g/mL indicates this expansion. Using the formula for molarity change with volume, the molarity at 50.0°C is approximately 3.151 M.

At 250°C,a Solution Has a Concentration of 3