Question

If you filled three balloons with eaqual volumes of hydrogen, argon, and carbon dioxide gas all at the same temperature and pressure, which ballon would weigh the most? The least?
PV = nRT.
If P is constant, R is constant, T is constant, V is constant, then n must constant.
n = grams/molar mass and rearrange to grams = n*molar mass
So the largest grams would be the one with the largest molar mass?
The least in grams would be the one with the smallest molar mass?...

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