5. A 14 oz. can of hair spray contains 414.0 mL of a gas mixture containing polymers and propellant at ambient temperatures. A typical can contains 80% propellant by weight. Assume the gas is 100% propellant made of isobutane (C4H10). The density of isobutane is 2.51 g mL^-1. if the amount of gas were doubled under constant pressure, what volume (in mL) would gas occupy? Assume an ideal gas.