A gas mixture composed of helium and argon has a density of
A gas mixture composed of helium and argon has a density of 0.670 g/L at 755 mm Hg and 298K. What is the composition of the mixture by mass?
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a gas mixture composed of helium and argon has a density of 0670 gl at 755 mm hg and 298k what is the composition of
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