An HCl solution has a pH of 3.10, what is the [OH^-] in this solution? A) 7.9 × 10^-18 M B) 1.3 × 10^-11 M C) 7.9 × 10 ⁴ M D) 1.3 × 10³ M

Question

Quizplus · Accepted Answer

The pH of a solution can be used to calculate the [H+] concentration, which can then be used to calculate the [OH-] concentration using the equation KW = [H+][OH-]. In this case, the [H+] concentration can be calculated as 10^-3.10 = 7.94 × 10^-4 M. Using the equation KW = [H+][OH-], the [OH-] concentration can be calculated as 1.26 × 10^-11 M. Therefore, the answer is B.

An HCl Solution Has a PH of 3