Chemistry: The Molecular Science (5th Edition)

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

Chapter 2 - Chemical Compounds - Questions for Review and Thought - Topical Questions - Page 90b: 27


See below.

Work Step by Step

The weighted average between these isotopes is: (23.985042 u)(.7899) + (24.985837 u)(.1000) + (25.982593 u)(.1101) Evaluating this expression gives 24.305 u, which is equal to the given value.
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