What is the pH of a 0.0100 M sodium benzoate solution? K_b (C₇H₅O₂^-) = 1.5 × 10^-10 A) 0.38 B) 12.00 C) 10.91 D) 8.09 E) 13.62

Name: What is the pH of a 0.0100 M sodium benzoate solution? K b (C 7 H 5 O 2 - ) = 1.5 × 10 -10 A) 0.38 B) 12.00 C) 10.91 D) 8.09 E) 13.62
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Quizplus · Accepted Answer

Sodium benzoate is a salt of a weak acid (benzoic acid) and a strong base (NaOH). It hydrolyzes in water to form a basic solution. Using the Kb value, we can calculate the pOH and then the pH. The pH is approximately 8.09.

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