What is the pH of a 1.0 × 10⁻⁴ M solution of KOH?

Name: What is the pH of a 1.0 × 10 −4 M solution of KOH?
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Quizplus · Accepted Answer

KOH is a strong base, so it dissociates completely in water. The concentration of OH- ions will be 1.0 × 10^-4 M. The pOH is calculated as -log[OH-] = -log(1.0 × 10^-4) = 4. The pH can then be found using the relationship pH + pOH = 14, so pH = 14 - 4 = 10.

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