What is the pH of a 0.375 M aqueous solution of benzoic acid? K_a = 6.3 × 10^-5

Name: What is the pH of a 0.375 M aqueous solution of benzoic acid? K a = 6.3 × 10 -5
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Quizplus · Accepted Answer

The pH of a weak acid solution can be calculated using the formula pH = -log[H⁺], where [H⁺] is determined from the expression [H⁺] = √(Kₐ × C). For benzoic acid, [H⁺] = √(6.3 × 10⁻⁵ × 0.375) ≈ 0.00485, and pH = -log(0.00485) ≈ 2.3.

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