Chemistry: The Molecular Nature of Matter and Change 7th Edition

Published by McGraw-Hill Education
ISBN 10: 007351117X
ISBN 13: 978-0-07351-117-7

Chapter 12 - Problems: 12.104

Answer

1.67 x 10^-8 cm

Work Step by Step

208.982 g/mol divided by 6.022 x 10^23 atoms/mol = 3.470309 x 10^-22 g 3.470309 x 10^-22 g divided by 9.323 g/cm^3 = 3.7223 x 10^-23 cm3 What is the edge length of the unit cell? cube root of (3.7223 x 10^-23 cm3) = 3.3389 x 10^-8 cm The atoms touch along the edge length, so the edge length is twice the atomic radius, which then equals 1.67 x 10^-8 cm
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