Chemistry: A Molecular Approach (3rd Edition)

Published by Prentice Hall
ISBN 10: 0321809246
ISBN 13: 978-0-32180-924-7

Chapter 2 - Sections 2.1-2.9 - Exercises - Problems by Topic: 88c

Answer

$3.982\times10^{22}\ atoms\ Pt $

Work Step by Step

1. Use the molar mass of platinum and Avogadro's number as conversion factors in order to determine the number of atoms of platinum. 2. $12.899 g\ Pt \times\frac{1\ mol\ Pt}{195.08\ g\ Pt}\times\frac{6.022\times10^{23}}{1\ mol\ Pt}= 3.982\times10^{22}\ atoms\ Pt $
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