molecular weight

A sample of oxygen gas was found to effuse at a rate equal to two times that of an unknown gas. The molecular weight of the unknown gas is __________ g/mol.

A) 64
B) 128
C) 8
D) 16
E) 8.0

1 answer

Selena Tate Staff June 13, 2015

A sample of oxygen gas was found to effuse at a rate equal to two times that of an unknown gas.  The molecular weight of the unknown gas is __________ g/mol.
Solution:
128

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