Calculate the PH of a Solution Prepared by Dissolving 0

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