The K_a of Acetic Acid Is 1

question 90

Multiple Choice

The K_a of acetic acid is 1.76 × 10^-5. The pH of a buffer prepared by combining 45.0 mL of 1.00 M potassium acetate and 50.0 mL of 1.00 M acetic acid is __________.

• A)1.705
• B)0.851
• C)3.406
• D)4.709
• E)2.383

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