What Is the PH of an Aqueous 0

question 66

Multiple Choice

What is the pH of an aqueous 0.50 M KCN solution?
K _a(HCN) = 6.2×10 ^{- 10}

• A) pH = 2.55
• B) pH = 3.81
• C) pH = 4.75
• D) pH = 9.25
• E) pH = 11.45

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