Chemistry: The Molecular Science (5th Edition)

Published by Cengage Learning
ISBN 10: 1285199049
ISBN 13: 978-1-28519-904-7

Chapter 9 - Liquids, Solids, and Materials - Questions for Review and Thought - Topical Questions - Page 421c: 66



Work Step by Step

Number of atoms in a bcc unit cell: $n=2$ Edge length, $a=\frac{4}{\sqrt 3}r=\frac{4}{\sqrt 3}(141\,pm)=325.6\times10^{-10}\,cm$ Molar mass of tungsten, $M=183.84\,g$ Avogadro's number, $N_{A}=6.022\times10^{23}$ Density= $\frac{n\times M}{a^{3}\times N_{A}}=\frac{2\times183.84\,g}{(325.6\times10^{-10}\,cm)^{3}\times6.022\times10^{23}}$ $=17.7\,g/cm^{3}$
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