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 - Problems by Topic: 28c

Answer

NaCHO$_2$ forms CHO$_2$- ions in solution. These ions react with H+ ions to form formic acid. This reaction takes H+ ions out of the solution, raising the pH.

Work Step by Step

A substance that will raise the pH of the solution is one that itself has a higher pH than the solution. Another possibility occurs when a dissolved substance will take out H+ ions from the solution.
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