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A mixture of hydrogen and helium gases is maintained in a 9.75 L flask at a...

A mixture of hydrogen and helium gases is maintained in a 9.75 L flask at a pressure of 2.88 atm and a temperature of 76 °C. If the gas mixture contains 0.492 grams of hydrogen, the number of grams of helium in the mixture is ___g.

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According to ideal gas law PV = nRT p is the pressure V is the volume n is number of moles R = 0.0821 L. atm. mol.kt t is thePue = nRT PH = eles 0.492 mod X0.0821 L-atmimet. IX 16+273)* 2 X 9.752 PH₂ = 0.722 93 470769 atm 2.88 - 0-72293470769 atm PH

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