p42_006.pdf

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Chapter 42 - 42.6
6. We note that there is one conduction electron per atom and that the molar mass of gold is 197 g / mol.
Therefore, combining Eqs. 42-2, 42-3and 42-4 leads to
n =
(19 . 3g / cm 3 )(10 6 cm 3 / m 3 )
(197 g / mol) / (6 . 02
10 23 mol − 1 ) =5 . 90
×
10 28 m − 3 .
×

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