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 - Questions for Review and Thought - Topical Questions - Page 693b: 35a


Bromthymol blue is the best choice for that titration, because the pH of the equivalence point is equal to 7.00, and this indicator changes its color between pH = 6 and pH = 8.

Work Step by Step

$NaOH$ is a strong base and $HClO_4$ is a strong acid; therefore, the pH at the equivalence point is neutral $(pH = 7.00)$. As we can see on page 667, the Bromthymol changes its color between the pH values 6 and 8, so, it is the best choice.
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.