Liquid ammonia (NH3) is applied as a fertilizer. You are working for a company that

Liquid ammonia (NH3) is applied as a fertilizer. You are working for a company that applies the ammonia (they charge a lot for every pound they apply to the soil) and you keep track of the pounds of ammonia that has been applied from the tank on the back end of your pickup (four wheel drive with big tires). After the liquid has been emptied from the tank there is still gas ammonia left in the tank. It has been sitting in the sun and its temperature is 125o F. Also the pressure gauge at the top of the tank shows 230 psig (pounds per square inch gauge). The tank has a volume of 120 ft3. How many pounds of ammonia are left in the tank