What Is the PH of a Solution Prepared by Mixing

question 4

Multiple Choice

What is the pH of a solution prepared by mixing 30.00 mL of 0.10 M CH₃CO₂H with 30.00 mL of 0.030 M CH₃CO₂K? Assume that the volume of the solutions are additive and that K_a = 1.8 × 10^-5 for CH₃CO₂H.

• A) 2.87
• B) 4.22
• C) 4.75
• D) 5.27

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