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What is the molar mass of a substance whose gas density is 2.86 g/l?
2 Answers
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- 1 decade ago
density has no influence whatsoever on molar mass.
molar mass is nothing more than the mass of 1 mole of a given substance, for water for example this would be
16,00 + 2*1,008 = 18,016
- TheOnlyBeldinLv 71 decade ago
PV = nRT
PV = gRT / MM
MM = gRT / PV
as density = mass/volume
MM = density * RT/P
You need to know the temperature and the pressure to be able to determine molar mass.
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