Chemistry: The Central Science (13th Edition)

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

Chapter 2 - Atoms, Molecules, and Ions - Exercises - Page 77: 2.61c



Work Step by Step

An ionic compound will always have a neutral charge. The problem states that an Aluminium (Al) ion will have a charge of +3 while Acetate ($(CH_{3}COO)$) has a charge of -1. Hence, to make the overall charge neutral, there must be three Acetates for one Aluminium ion, making the chemical formula for this compound $Al(CH_{3}COO)_{3}$.
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