Formulas:
PM
d=
RT
dRT
M=
P
1. What is the density of an ideal gas with a molecular mass of 50 g/mol at 2
atm and 27 °C?
2. What is the molar mass of a gas which has a density of 0.00249 g/mL at 20.0
°C and 744.0 mm Hg?
3. Calculate the density of radon at 292 K and 1.10 atm of pressure.
4. What is the density of carbon tetrachloride vapor at 714 torr and 125℃?
5. An unknown gas has a density of 3.167 g/L at STP. What is the identity of
the gas? (Options: Ag, HF, O2. Cl2. H2O)
6. Determine the density of CO2 at 745 mmHg and 65℃.
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