The PK_a of Acetic Acid (HC₂H₃O₂) Is 4

question 52

Multiple Choice

The pK_a of acetic acid (HC₂H₃O₂) is 4.75. What is the pH of a buffer in which [HC₂H₃O₂] = 2.0 M and [NaC₂H₃O₂] = 0.20 M?

• A) 3.75
• B) 4.75
• C) 5.75
• D) 7.00

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