Chemistry and Chemical Reactivity (9th Edition)

by Kotz, John C.; Treichel, Paul M.; Townsend, John R.; Treichel, David A.

Published by Cengage Learning

ISBN 10: 1133949649

ISBN 13: 978-1-13394-964-0

Chapter 2 Atoms, Molecules, and Ions - Study Questions - Page 95a: 23

Answer

Their abundances are $60.12\%$ and $39.88\%$, respectively.

Work Step by Step

Gallium's atomic weight is 69.723: $68.9257\times x+70.9249\times(1-x)=69.723$ solving for x: $x=0.6012$ Their abundances are $60.12\%$ and $39.88\%$, respectively.

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