An aqueous solution contains 0.390 M HCl at 25.0 °C.The pH of the solution is ________.
A)0.41
B)0.390
C)13.61
D)13.59
E)7.00

Question

Quizplus · Accepted Answer

The pH of a solution is calculated using the formula pH = -log[H+], where [H+] is the concentration of hydrogen ions. For a 0.390 M HCl solution, which is a strong acid and dissociates completely in water, [H+] = 0.390 M. Thus, pH = -log(0.390) ≈ 0.41.

An Aqueous Solution Contains 0