What is the pH of a 0.030 M aqueous solution of calcium hydroxide?
A)1.52
B)12.48
C)10.41
D)12.78
E)1.22

Name: What is the pH of a 0.030 M aqueous solution of calcium hydroxide? A)1.52 B)12.48 C)10.41 D)12.78 E)1.22
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Quizplus · Accepted Answer

Calcium hydroxide, Ca(OH)₂, is a strong base that dissociates completely in water to produce 2 moles of OH⁻ ions per mole of Ca(OH)₂. Therefore, a 0.030 M solution of Ca(OH)₂ produces 0.060 M OH⁻. The pOH is calculated as -log(0.060) = 1.22. The pH is then 14 - 1.22 = 12.78.

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