The K_a of Acetic Acid Is 1

question 65

Multiple Choice

The K_a of acetic acid is 1.76 × 10^{- 5}. The pH of a buffer prepared by combining 50.0 mL of 1.00 M potassium acetate and 50.0 mL of 1.00 M acetic acid is _ .

• A) 0.85
• B) 2.38
• C) 4.77
• D) 1.70
• E) 3.40

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