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@X@user.full_name@X@ @GMU: What is the mole fraction of C2H6 in a mixture of 11.90 g of C2H6 and 0.9818 g of He?

@X@user.full_name@X@ @GMU: An unknown gas effused through a porous membrane 1.210 times faster than CO2. Which of the substances below must be the gas?

@X@user.full_name@X@ @GMU: How much work has been done when the volume of a gas changes from 10.76 L to 17.63 L at a constant pressure of 1.856 atm and temperature?

@X@user.full_name@X@ @GMU: A flexible container was filled with 0.1146 mol of NH3 at a volume of 15.39 L. How many liters of this gas would there be if the number of moles increased to 0.1795 mol? Assume pressure is constant.

@X@user.full_name@X@ @GMU: Draw the lewis dot structure of NH3. How many lone-pairs of electrons (first) and bonding pairs of electrons exist on the molecule NH3?

@X@user.full_name@X@ @GMU: A flexible container was filled with 0.1295 mol of CO2 at a volume of 14.18 L. How many moles of this gas would there be if the volume decreased to 7.44 L? Assume pressure is constant.

@X@user.full_name@X@ @GMU: An unknown gas effused through a porous membrane 1.332 times faster than Cl2. Which of the substances below must be the gas?

@X@user.full_name@X@ @GMU: A flexible container was filled with CO gas at a pressure of 1.451 atm and volume of 15.125 L. What volume would this same gas occupy if the pressure increased to 2.613 atm? Assume temperature is constant.

@X@user.full_name@X@ @GMU: How much work has been done when the volume of a gas changes from 17.18 L to 25.49 L at a constant pressure of 2.417 atm and temperature?

@X@user.full_name@X@ @GMU: A flexible container was filled with 0.1652 mol of CO at a volume of 19.34 L. How many moles of this gas would there be if the volume increased to 38.15 L? Assume pressure is constant.