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Short Question What is the density...?
What is the density of O2 at STP and 35 Celsius
1 atm
1 Answer
- 6 years ago
PV = nRT
n = mass / molar mass
substituting
PV = (mass / molar mass) RT
rearranging
P x molar mass / RT = mass / V = density
rearranging
density = P x molar mass / RT....
at STP.
density = (1 atm) x (32.0 g/mole) / [ (0.0821 Latm/moleK) x (273 K) ] = 1.43 g/L
at 1.00 atm and 35.0 C (= 308.12 K)
density = (1 atm) x (32.0 g/mole) / [ (0.0821 Latm/moleK) x (308.15 K) ] = 1.2649 g/L . this is 100% correct answer.
