It takes 66.2 s for an amount of Kr(g) (molar mass = 83.80 g/mol) to completely escape from a container through a small opening. It takes 75.2 s for the same amount of an unknown gas to completely escape from the same container under identical conditions. Identify the unknown gas.

Chemistry: Matter and Change
1st Edition
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Chapter13: Gases
Section: Chapter Questions
Problem 78A
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It takes 66.2 s for an
amount of Kr(g) (molar
mass = 83.80 g/mol) to
completely escape from a
container through a small
opening. It takes 75.2 s for
the same amount of an
unknown gas to completely
escape from the same
container under identical
conditions. Identify the
unknown gas.
Transcribed Image Text:It takes 66.2 s for an amount of Kr(g) (molar mass = 83.80 g/mol) to completely escape from a container through a small opening. It takes 75.2 s for the same amount of an unknown gas to completely escape from the same container under identical conditions. Identify the unknown gas.
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