What Is the Hydroxide Ion Concentration in a Solution of 0.40

question 39

Multiple Choice

What is the hydroxide ion concentration in a solution of 0.40 M hypochlorous acid (HOCl) ?
K _a = 3.0×10 ^{- 8}

• A) 1.3×10 ^{- 8}
• B) 1.1×10 ^{- 4}
• C) 9.1×10 ^{- 11}
• D) 2.5×10 ^{- 14}
• E) none of these

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