Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 16 - Acid-Base Equilibria - Exercises - Page 715: 16.4c

Answer

The temperature is given on the pH meter because temperature has an effect on pH.

Work Step by Step

Since this is an example of acid-base equilibria, and equilibrium is affected by temperature, then the concentration of H+ ions must be dependent on temperature. Therefore the pH of a given solution depends on the temperature.
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