Calculate the PH of a Solution Prepared by Dissolving 0

question 47

Multiple Choice

Calculate the pH of a solution prepared by dissolving 0.250 mol of benzoic acid (C₇H₅O₂H) and 0.150 mol of sodium benzoate (NaC₇H₅O₂) in water sufficient to yield 1.00 L of solution. The K_a of benzoic acid is 6.50 × 10^{- 5}.

• A) 4.19
• B) 2.39
• C) 10.0
• D) 3.97
• E) 4.41

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