You Wish to Prepare a Buffer Containing CH₃COOH with a PH

question 53

Multiple Choice

You wish to prepare a buffer containing CH₃COOH with a pH of 4.24. If the pK_a of acetic acid is 4.74, what ratio of [CH₃COO⁻]/[CH₃COOH] must you use?

• A) 0.10
• B) 0.50
• C) 0.32
• D) 2.0
• E) 2.8

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