A buffer solution is prepared with 0.371 M of benzoic acid , HC₇H₅O₂, and 0.186 M of sodium benzoate, NaC₇H₅O₂. For HC₇H₅O₂, Ka

Question

A buffer solution is prepared with 0.371 M of benzoic acid , HC₇H₅O₂, and 0.186 M of sodium benzoate, NaC₇H₅O₂. For HC₇H₅O₂, Ka = 8.5 x 10‾⁵. What is the pH of this solution?

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