Calculate the Mole Ratio of C₆H₅COONa to C₆H₅COOH Required to Make

question 38

Multiple Choice

Calculate the mole ratio of C₆H₅COONa to C₆H₅COOH required to make a buffer with pH of 4.68. K_a of C₆H₅COOH is 6.3 × 10^-5.

• A) 0.122
• B) 3.02
• C) 0.75
• D) 1.22
• E) 10.0

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