A compressed air tank in a mechanic shop holds a volume of 1 m of air at 1000 kPa. The temperature of the air in the tank is 300 K (27C). Using the ideal gas law equation shown below, determine the mass of air in the tank. The molecular mass of air is equal to M = 28.97 kg. Recall that the so-called Ideal Gas Law is kmol PV = nRT kPa.m kmolK' where the universal gas constant R = 8.31447- of the gas, and V is the volume occupied by the gas. The mass of air in the tank is most nearly O m = 11.6 kg O m = 0.400 kg n is the number of kmol of gas, P is the pressure O m = 129 kg m = 96.6 kg