Chemistry (4th Edition)

Published by McGraw-Hill Publishing Company
ISBN 10: 0078021529
ISBN 13: 978-0-07802-152-7

Chapter 16 - Questions and Problems - Page 771: 16.20


pH is the negative logarithm of the hydronium ion concentration: $pH = -log[H_3O^+]$ We choose to discuss the acidity by pH representation because, it is easier to represent, if compared to the concentration of hydronium ion, which is, most of the time, a very small number.

Work Step by Step

You can find this information in every textbook that talks about acids and bases, or in the internet. Example of pH representation: $[H_3O^+] = 10^{-7}$ is represented by: $pH = 7$, which is a very simple way to describe the same information.
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.