General Chemistry: Principles and Modern Applications (10th Edition)

Published by Pearson Prentice Hal
ISBN 10: 0132064529
ISBN 13: 978-0-13206-452-1

Chapter 6 - Gases - Example 6-9 - Using the Ideal Gas Equation in Reaction Stoichiometry Calculations - Page 211: Practice Example A


53.4 g

Work Step by Step

Using ideal gas law: $n=\frac{PV}{RT}$ $=\frac{(776\, mmHg\times\frac{1\,atm}{760\, mmHg})(20.0\,L)}{(0.08206\,L\,atm\,K^{-1}mol^{-1})(30.0+273)K}$ $=0.8213\,mol$ Grams of $NaN_{3}=0.8213\,mol\times\frac{65.0\,g\,NaN_{3}}{1\,mol}$ $=53.4\,g\,NaN_{3}$
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