Calculate the pH of a 1.60 M KBrO solution.K_a for hypobromous acid,HBrO,is 2.0 × 10^-⁹. A)2.55 B)4.25 C)9.75 D)11.45

Name: Calculate the pH of a 1.60 M KBrO solution.K a for hypobromous acid,HBrO,is 2.0 × 10 - 9 . A)2.55 B)4.25 C)9.75 D)11.45
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Quizplus · Accepted Answer

KBrO is a salt of the weak acid HBrO and strong base KOH. The pH is determined by the hydrolysis of BrO⁻. Using Kb = Kw/Ka, calculate [OH⁻], then pOH, and finally pH. The pH is 11.45.

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