Chemistry (12th Edition)

Published by Prentice Hall
ISBN 10: 0132525763
ISBN 13: 978-0-13252-576-3

Chapter 10 - Chemical Quantities - 10.2 Mole-Mass and Mole-Volume Relationships - Sample Problem 10.8: 23

Answer

3.74 g/L

Work Step by Step

The atomic mass of an element is also the weight of one mole of that element. The atomic mass of krypton is 83.8 amu, so it weighs 83.8g for every 1mol: 83.8g/1mol. At STP (standard temperature and pressure) the volume of all ideal gases is 22.4L for every mole of gas. Thus, we can then combine these equations to eliminate mole and to get our answer in grams per liter.
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