Calculating mole fraction in a gas mixture 315 A 10.00L tank at 17.5 C is filled with 12.1 g of dinitrogen difluoride gas and 6.44 g of boron trifluoride gas. You can assume both gases behave as ideal gases under these conditions. Calculate the mole fraction of each gas. Be sure each of your answer entries has the correct number of significant digits. gas X 5 ? dinitrogen difluoride mole fraction 0 0 boron trifluoride Enlanhlor Check