Chemistry and Chemical Reactivity (9th Edition)

Published by Cengage Learning
ISBN 10: 1133949649
ISBN 13: 978-1-13394-964-0

Chapter 2 Atoms, Molecules, and Ions - Study Questions - Page 95a: 24


Their abundances are $48.02\%$ and $51.98\%$ respectively.

Work Step by Step

Europium's atomic weight is 151.96: $150.9197\times x+152.9212\times(1-x)=151.96$ solving for x: $x=0.4802$ Their abundances are $48.02\%$ and $51.98\%$ respectively.
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