A 0.1500 M HCl solution was prepared on a day when the temperature was 20^oC.What is concentration of the solution when used the next day at 27^oC? The density of water is 0.9982071 g/mL at 20^oC and 0.9965162 g/mL at 27^oC. A)0)1503 M B)0)1497 M C)0)1508 M D)6)653 M E)6)632 M

Question

Quizplus · Accepted Answer

The concentration of the HCl solution will change with temperature due to the temperature dependence of water density. We can use the formula:

C2 = C1 x (d1/d2)

where C1 and C2 are the concentrations at the two temperatures and d1 and d2 are the densities of water at those temperatures. Plugging in the values:

C2 = 0.1500 M x (0.9982071 g/mL / 0.9965162 g/mL)
C2 = 0.1497 M

Therefore, the concentration of the solution when used the next day at 27°C is 0.1497 M, which is closest to choice B: 0.1497 M.

A 01500 M HCl Solution Was Prepared on a Day When