A sample of dry air that has a mass of 100.00 g, collected at sea level, is analyzed and found to consist of the following gases: Nitrogen (N2) = 75.52 g Oxygen (O2) = 23.15 g Argon (Ar) = 1.28 g Carbon dioxide (CO2) # 0.05 g Plus trace amounts of neon, helium, methane, and other gases. (a) Calculate the partial pressure of each gas when the pressure is 1.013 X 105 Pa. (b) Determine the volume occupied by the 100-g sample at a temperature of 15.00°C and a pressure of 1.00 atm. What is the density of the air for these conditions? (c) What is the effective molar mass of the air sample?
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