Answer
85.47 amu
Work Step by Step
We find the atomic mass:
Atomic mass = $(\frac{72.17}{100}\times84.9118 amu)+(\frac{27.83}{100}\times86.9092 amu)$ = 85.47 amu
Introductory Chemistry (5th Edition)
by Tro, Nivaldo J.
Published by
Pearson
ISBN 10:
032191029X
ISBN 13:
978-0-32191-029-5
Chapter 4 - Atoms and Elements - Exercises - Problems - Page 124: 97
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