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29 May, 00:08

Methane gas, ch4, effuses through a barrier at a rate of 0.147 ml/minute. if an unknown gas effuses through the same barrier at a rate of 8.87e-2 ml/minute, what is the molar mass of the gas?

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  1. 29 May, 03:43
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    1.387 g/mol We set up a proportion using the known values. The molar mass of methane gas is 16.04 g/mol. 16.04 g/mol - - 0.147 ml/minute? g/mol - - 8.87e-2 ml/minute 16.04 * 8.87e-2 = 0.20387178447 0.20387178447 / 0.147 = 1.387 The unknown gas has a molar mass of 1.387 g/mol.
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