Chemistry: The Molecular Science (5th Edition)

Published by Cengage Learning
ISBN 10: 1285199049
ISBN 13: 978-1-28519-904-7

Chapter 15 - Additional Aqueous Equilibria - Problem Solving Practice 15.3 - Page 660: b


Acetic acid and acetate ion are capable of making a buffer solution with this hydronium concentration.

Work Step by Step

1. Calculate the pH value for this hydronium ion concentration: $pH = -log[H_3O^+]$ $pH = -log( 5.0 \times 10^{- 5})$ $pH = 4.30$ 2. Using the Table 15.1, identify the conjugate pair with $pKa$ closest to $4.30$ - Acetic acid and acetate ion: $4.74$ ** Remember, this difference must be lower than 1, because this is approximately the pH range of a buffer solution.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.