What is the pH of a 0.570 M solution of aniline? Kb = 7.4 × 10^-10 A) 11.4 B) 2.6 C) 9.4 D) 4.7 E) 9.3

Name: What is the pH of a 0.570 M solution of aniline? Kb = 7.4 × 10 -10 A) 11.4 B) 2.6 C) 9.4 D) 4.7 E) 9.3
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Quizplus · Accepted Answer

Aniline is a weak base, and its pH can be calculated using the formula for pH of a weak base: pH = 14 - pOH. First, calculate the pOH using the formula: pOH = -log(sqrt(Kb * [base])). For aniline, pOH = -log(sqrt(7.4 × 10^-10 * 0.570)) ≈ 4.7. Therefore, pH = 14 - 4.7 = 9.3.

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