How does Pressure affect molar mass?

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The discussion clarifies that molar mass is not affected by pressure when using the ideal gas law. The equation mm = mRT/PV indicates that while pressure increases, the volume decreases, maintaining the constancy of the product PV. Therefore, changes in pressure do not influence the calculation of molar mass, as confirmed by user jessie.

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Will a higher pressure increase or decrease molar mass when using the ideal gas law, but solving for mm... (mm=mRT/PV)

I was thinking higher pressure would = decrease in molar mass, because of the gas laws and because p=1/v but I am not sure if that's right

thanks!

jessie
 
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Molar mass is not a function of pressure. PV=const, when you increase the pressure volume goes down and PV in denominator doesn't change.
 

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