6. A 0.11 M solution of weak acid, HA, has a pH of 4.24. a. Write the dissociation reaction of the acid in water. b. Write the acid dissociation constant expression. c. Given the table below, what is the most probable identity of the acid? Acid Ka Hypochlorous acid 3.0 x 10-8 Nitrous acid 7.1 x 10-4 Hydrogen cyanide 6.2 x 10-10 Propionic acid 1.3 x 10-5

6. A 0.11 M solution of weak acid, HA, has a pH of 4.24. a. Write the dissociation reaction of the acid in water. b. Write the acid dissociation constant expression. c. Given the table below, what is the most probable identity of the acid? Acid Ka Hypochlorous acid 3.0 x 10-8 Nitrous acid 7.1 x 10-4 Hydrogen cyanide 6.2 x 10-10 Propionic acid 1.3 x 10-5

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter16: Spontaneity, Entropy, And Free Energy

Section: Chapter Questions

Problem 92AE: Use the equation in Exercise 79 to determine H and S for the autoionization of water:...

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