@X@user.full_name@X@ @GMU: A flexible container was filled with 0.1735 mol of N2O4 at a volume of 15.11 L. How many moles of this gas would there be if the volume increased to 23.44 L? Assume pressure is constant.

@X@user.full_name@X@ @GMU: What is the mole fraction of HCN in a mixture of 16.98 g of HCN and 45.8931 g of HI?

@X@user.full_name@X@ @GMU: Assume you have an open ended manometer filled with an oil having a density of 0.7535 g/mL at 20°C rather than mercury (density = 13.546 g/mL at 20°C). What is the pressure in atmospheres if the level of the arm open to the atmosphere is 154.80 cm higher than the level in the arm connected to the gas sample? The atmospheric pressure reading is 752.24 mm Hg.

@X@user.full_name@X@ @GMU: An unknown gas effused through a porous membrane 1.298 times slower than F2. What is the molecular mass of the unknown gas?

@X@user.full_name@X@ @GMU: Which of the compounds below is non-polar?

@X@user.full_name@X@ @GMU: A gas mixture contained 56.82% by weight HBr and 43.18% C2H6. What was the mole fraction of HBr?

@X@user.full_name@X@ @GMU: A flexible container was filled with CO2 gas at a pressure of 1.118 atm and volume of 12.829 L. What volume would this same gas occupy if the pressure increased to 2.275 atm? Assume temperature is constant.

@X@user.full_name@X@ @GMU: A flexible container was filled with H2 gas at a pressure of 1.64 atm and volume of 10.905 L. What pressure would this gas exert if the volume increased to 18.47 L? Assume temperature is constant.

@X@user.full_name@X@ @GMU: What is the molecular shape of H2O ?

@X@user.full_name@X@ @GMU: What is the average speed of CO molecules (atoms) at 25.00 °C?