Chemistry: The Central Science (13th Edition)

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

Chapter 17 - Additional Aspects of Aqueous Equilibria - Exercises - Page 766: 17.5b


Drawing number $(i)$ is the appropriate representation for that situation.

Work Step by Step

When $NaOH$ is added to a weak acid solution, this reaction will happen: $HA(aq) + NaOH(aq) -- \gt A^-(aq) + Na^+(aq) + H_2O(l)$ Therefore, the concentration of $[HA]$ is decreasing, and the $[A^-]$ is increasing. The figure that represents that situation is the number $(i)$
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