What Is the [CH₃COO^-]/[CH₃COOH] Ratio Necessary to Make a Buffer

question 32

Multiple Choice

What is the [CH₃COO^-]/[CH₃COOH] ratio necessary to make a buffer solution with a pH of 4. 34? K_a = 1.8 × 10^-5 for CH3COOH.

• A) 0. 39:1
• B) 0. 91:1
• C) 1. 09:1
• D) 2.5:1

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