Answer
$0.0127\ mole$
Work Step by Step
It is given that:
Gold has a molar mass of 197 g/mol
This means that 179 g of Gold comprises of 1 mole.
Therefore,
2.5 g Gold comprises of $\frac{2.5\ g\times 1\ mole}{179\ g} =0.0127\ mole$
Fundamentals of Physics Extended (10th Edition)
by Halliday, David; Resnick, Robert; Walker, Jearl
Published by
Wiley
ISBN 10:
1-11823-072-8
ISBN 13:
978-1-11823-072-5
Chapter 19 - The Kinetic Theory of Gases - Problems - Page 577: 2a
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