Chemistry 9th Edition

Published by Cengage Learning
ISBN 10: 1133611095
ISBN 13: 978-1-13361-109-7

Chapter 3 - Stoichiometry - Exercises: 39

Answer

Mass of $^{185}Re$= 185.0 amu

Work Step by Step

Let m be the molar mass of $^{185}Re$: $186.207 = 0.6206*186.956+(1-0.6206)m$ $m=\frac{186.207-0.6206*186.956}{(1-0.6206}=185.0$ amu
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