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Help with gas law equation?
OKAY. The formulas we know so far are PV/T, PV=nRT, and P(molar mass)=DRT. One of our homework problems deals with none of these formulas, as far as I can see.
It reads: "A gas sample has a density of 2.54e-10 g/cm3 when the temp is 283K and the pressure is 96.3 kPa. What will the density of the gas be at STP?"
My issue with this is that the only formulas we know that deal with density also deal with GFM (also known as molar mass), and the name of this gas sample is not given!
I'm not asking for anyone to solve it for me. Can someone please just tell me the formula so I know where to start? Thank you so much!
Whoops. It's 285K, not 283.
1 Answer
- 9 years agoFavorite Answer
dRT/P=dRT/P
I set them both equal to molar mass, it stays the same
now plug in all the numbers
