K_a = 1

question 32

Multiple Choice

K_a = 1.8 × 10^-5 for the ionization of HC₂H₃O₂(aq) .Determine the [HC₂H₃O₂]/[C₂H₃O₂^-] ratio that will produce a buffer at pH = 5.00.

• A)3.6 × 10^-6
• B)9.0 × 10^-5
• C)0.18
• D)0.56
• E)1.8

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