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@X@user.full_name@X@ @GMU: What is the mole fraction of C3H8 in a mixture of 13.92 g of C3H8 and 11.1159 g of H2S?

@X@user.full_name@X@ @GMU: A flexible container was filled with 0.1679 mol of N2O4 at a volume of 13.47 L. How many liters of this gas would there be if the number of moles decreased to 0.0990 mol? Assume pressure is constant.

@X@user.full_name@X@ @GMU: A flexible container was filled with O2 gas at a pressure of 1.61 atm and volume of 14.138 L. What pressure would this gas exert if the volume decreased to 8.00 L? Assume temperature is constant.

@X@user.full_name@X@ @GMU: Draw the lewis dot structure of O2. How many lone-pairs of electrons (first) and bonding pairs of electrons exist on the molecule O2?

@X@user.full_name@X@ @GMU: How much work has been done when the volume of a gas changes from 11.58 L to 19.19 L at a constant pressure of 2.543 atm and temperature?

@X@user.full_name@X@ @GMU: What is the molecular shape of XeF4 ?

@X@user.full_name@X@ @GMU: What is the arrangement of charge clouds (electron pairs) around the central atom in H2Se?

@X@user.full_name@X@ @GMU: The average speed of NO molecules (atoms) was 627.3 m/s. What was the temperature of the gas?

@X@user.full_name@X@ @GMU: An unknown gas effused through a porous membrane 5.932 times slower than H2. Which of the substances below must be the gas?

@X@user.full_name@X@ @GMU: The density of a particular gas is 1.4352 g/L at 694.14 mm Hg and 21.53 °C. What is the molecular mass of the gas?