What is the pH of a 0.020 M aqueous solution of barium hydroxide?

Name: What is the pH of a 0.020 M aqueous solution of barium hydroxide?
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Quizplus · Accepted Answer

Barium hydroxide, Ba(OH)₂, is a strong base that dissociates completely in water to produce two hydroxide ions (OH⁻) per formula unit. Therefore, a 0.020 M solution of Ba(OH)₂ produces 0.040 M OH⁻. The pOH is calculated as -log(0.040) = 1.40. The pH is then 14 - 1.40 = 12.60.

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