General Chemistry 10th Edition

Published by Cengage Learning
ISBN 10: 1-28505-137-8
ISBN 13: 978-1-28505-137-6

Chapter 16 - Acid-Base Equilibria - Exercises - Page 674: 16.4

Answer

It's simply due to dilution. If it's true that adding water increases dissociation, concentration of H3O+ inevitably decreases. As a consequence, pH is defined as −log[H3O+].

Work Step by Step

It's simply due to dilution. If it's true that adding water increases dissociation, concentration of H3O+ inevitably decreases. As a consequence, pH is defined as −log[H3O+].
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