Chemistry: A Molecular Approach (3rd Edition)

Published by Prentice Hall
ISBN 10: 0321809246
ISBN 13: 978-0-32180-924-7

Chapter 16 - Sections 16.1-16.8 - Exercises - Review Questions: 13b

Answer

pH is calculated from the H3O+ concentration.

Work Step by Step

Before the equivalence point is reached, H3O+ is in excess. Subtract moles OH- from H3O+ the divide by the total volume to find its concentration. From there, use the definition of pH to find the pH.
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