Chemistry: The Molecular Science (5th Edition)

Published by Cengage Learning
ISBN 10: 1285199049
ISBN 13: 978-1-28519-904-7

Chapter 15 - Additional Aqueous Equilibria - Questions for Review and Thought - Topical Questions - Page 693a: 27d


$1L$ of $0.20M$ $NaOH$ and 0.10 mol $NaCH_3COO$ wouldn't form a buffer, because there is no acid to neutralize added bases.

Work Step by Step

$- NaOH:$ Strong base. $- NaCH_3COO$: Weak salt base. A buffer needs: 1. An acid and a base: Base: $NaOH$ and $NaCH_3COO$ Acid: Missing. Therefore, this mixture can't act as a buffer, because it doesn't have an acid, so it can't neutralize added bases.
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