What is the pH of a 0.570 M aqueous solution of aniline?
K_b = 7.4 × 10^-10

Name: What is the pH of a 0.570 M aqueous solution of aniline? K b = 7.4 × 10 -10 A)11.4 B)2.6 C)9.8 D)4.7 E)9.3
Brand: Quizplus
Rating: 4.8 (34 reviews)

Question

What is the pH of a 0.570 M aqueous solution of aniline? K_b = 7.4 × 10^-10 A)11.4 B)2.6 C)9.8 D)4.7 E)9.3

Quizplus · Accepted Answer

Aniline is a weak base, and we can use the Kb value to find the pOH first. Using the formula pOH = -log[OH-], we find [OH-] using the equation Kb = [OH-]^2 / [Aniline]. Solving for [OH-] and then finding pOH, we can convert to pH using pH = 14 - pOH. The calculations lead to a pH of approximately 9.3.

What Is the PH of a 0