Chemistry: The Molecular Nature of Matter and Change 7th Edition

Published by McGraw-Hill Education
ISBN 10: 007351117X
ISBN 13: 978-0-07351-117-7

Chapter 23 - Problems: 23.24

Answer

See explanation below.

Work Step by Step

We know that oxides of transition metals become more acidic as oxidation state increases. The oxidation state of chromium in CrO3 is +6 and in CrO is +2. The oxide of the higher oxidation state, CrO3, produces a more acidic solution.
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