What Is the Acid Ionization Constant , K _a, for Lactic

question 85

Multiple Choice

What is the acid ionization constant , K _a, for lactic acid, CH₃CH(OH) COOH, if the base ionization constant, K _b, of CH₃CH(OH) COO ^- equals 7.1×10 ^{- 11}?

• A) K _a = 7.1×10 ^{- 25}
• B) K _a = 7.1×10 ^{- 11}
• C) K _a = 1.4×10 ^{- 4}
• D) K _a = 7.1×10³
• E) K _a = 1.4×10²⁴

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Definitions:

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