A driver with a almost empty fuel tank may say she is "running on fumes." If a 15.0 gallon automobile gas tank had merely gasoline vapor remaining in it, explain what is the farthest the vehicle could travel if it gets 20.0 miles per gallon on liquid gasoline? Presume the average molar mass of molecules in gasoline is 108g/mol , the density of liquid gasoline is 0.75 g/mL, the pressure is 741mmHg as well as the temperature is 25oC.