III Mari OSTATES OF MATTER Using the ideal equation of state Sulfur hexafluoride gas is collected at 13.0C in an evacuated flask with a measured volume of 15.0 L. When all the gas has been collected, the pressure in the flask is measured to be 0.220 atm. Calculate the mass and number of moles of sulfur hexafluoride gas that were collected. Be sure your answer has the correct number of significant digits. mass: 1: mole: mol 5