2. A solution contains 250 mL of 0.25M benzoic acid (HBen) and 0.20M sodium benzoate(NaBen). What is the pH of the solution after 25.0 mL of 0.10M HCI have been added?(Ka (HBen) = 6.5 x 10-5)(A) 4.19(B)4.107.9(C)4.28 c(D)4.05

Step 1:Ka= 6.5×10-5pka= -(log Ka) =-(6.5×10-5) = 4.18 Step 2:HCl is strong acid when added…

Answered: 2. A solution contains 250 mL of 0.25M…

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter14: Equilibria In Acid-base Solutions

Section: Chapter Questions

Problem 55QAP: For an aqueous solution of acetic acid to be called distilled white vinegar it must contain 5.0%...

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2. A solution contains 250 mL of 0.25M benzoic acid (HBen) and 0.20M sodium benzoate (NaBen). What is the pH of the solution after 25.0 mL of 0.10M HCI have been added? (Ka (HBen) = 6.5 x 10-5) (A) 4.19 (B) 4.107.9 (C) 4.28 c (D) 4.05