What is the pH of a solution with [OH-] = 2.0 × 10^-10M? A)9.70 B)-9.70 C)4.30 D)-4.30 E)2.0 × 10^-10

Question

Quizplus · Accepted Answer

To find the pH of a solution with a given [OH-], we use the formula:

pH + pOH = 14

where

pOH = -log[OH-]

In this case, we are given [OH-] = 2.0 × 10^-10, so:

pOH = -log(2.0 × 10^-10) = 9.70

Substituting into the formula above, we get:

pH + 9.70 = 14

pH = 14 - 9.70 = 4.30

Therefore, the pH of the solution is 4.30. The answer is C.

What Is the PH of a Solution with [OH-] =