What Is the PH of a Solution Made by Dissolving

question 106

Multiple Choice

What is the pH of a solution made by dissolving 2.16 g of sodium benzoate (NaC₆H₅CO₂) in a sufficient volume of 0.033 M aqueous benzoic acid solution to prepare 500.0 mL of buffer? [K_a for benzoic acid is 6.3 × 10^-5]

• A)4.16
• B)4.37
• C)4.64
• D)5.77
• E)6.30

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