Extracted text: 1. The compressed air tank has a volume of 0.4 m. The temperature is 25°C and the atmospheric pressure is 101.35 kPa. When the tank is filled with air at a gage pressure of 262.74 kPa, determine the density of the air and the weight of air in the tank. Hint: Ideal gas law should be used. R-28 m/s?K