1. The compressibility factor Z = PV/nRT for O2 at -27.1C and 537.1 atm is 1.50; at 147.4C and 95.5 atm, it is 1.02. A certain mass of oxygen occupied a volume of 3.28 L at 147.4C and 95.5 atm. Calculate the volume occupied by the same quantity of oxygen at -27.1C and 537.1 atm. 2. The composition of a mixture of gases in percentage by volume is 20.5% nitrogen, 15.7% carbon monoxide, 37.8% water, and the rest sulfur dioxide. Calculate the density of the gaseous mixture at 39.8C and 1.46 atm in grams/liter. Report your answer to the hundredths position.