Chemistry (12th Edition)

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

Chapter 14 - The Behavior of Gases - 14 Assessment: 87

Answer

2.0 g/mol

Work Step by Step

We are given the the gas effuses faster than oxygen by a factor of 4. Substitute this value into the left side of the equation of Graham's Law. Substitute the molar mass of an oxygen molecule and solve for the molar mass of the unknown gas.
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