What is the hydroxide ion concentration in a solution with pH = 3?

Question

Quizplus · Accepted Answer

The pH of a solution is defined as the negative logarithm of the hydrogen ion concentration ([H+]). The equation to find [H+] is: [H+] = 10^(-pH) In this case, the pH is 3, so: [H+] = 10^(-3) [H+] = 10^-¹¹ M To find the hydroxide ion concentration ([OH-]), we can use the fact that at 25°C, the product of [H+] and [OH-] is always 10^-14 M: [H+][OH-] = 10^-14 M^2 Since we know [H+], we can rearrange this equation to solve for [OH-]: [OH-] = 10^-14 M^2 / [H+] [OH-] = 10^-14 M^2 / 10^-3 M [OH-] = 10^-11 M [OH-] = 10^-¹¹ M Therefore, the answer is (C).

What Is the Hydroxide Ion Concentration in a Solution with PH