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@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?

@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?