Freon-12 had been widely used as a refrigerant in air conditioning systems.  However, it has been shown to be related to destroying Earth’s important ozone layer.   What would you calculate as the molar mass of freon-12 if you had collected 9.27 grams, by water displacement, in a 2.00 liter volume at 30.0°C and 764 mmHg.  Water’s vapor pressure at this temperature is approximately 31.8 Torr.