What is the pH of a 0.0025 M Ba(OH)₂ solution? A)8.70 B)11.40 C)2.60 D)11.70 E)2.30

Name: What is the pH of a 0.0025 M Ba(OH) 2 solution? A)8.70 B)11.40 C)2.60 D)11.70 E)2.30
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Quizplus · Accepted Answer

Ba(OH)₂ is a strong base that dissociates completely in water to produce 2 OH⁻ ions per formula unit. Therefore, the concentration of OH⁻ ions is 0.005 M. The pOH is calculated as -log(0.005) = 2.30. The pH is then 14 - 2.30 = 11.70.

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