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@X@user.full_name@X@ @GMU: An unknown gas effused through a porous membrane 1.659 times slower than HI. What is the molecular mass of the unknown gas?

@X@user.full_name@X@ @GMU: Draw the lewis dot structure of CO2. How many lone-pairs of electrons (first) and bonding pairs of electrons exist on the molecule CO2?

@X@user.full_name@X@ @GMU: The density of a particular gas is 0.6492 g/L at 740.28 mm Hg and 20.11 °C. Which gas is it?

@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: How much work has been done when the volume of a gas changes from 19.28 L to 13.79 L at a constant pressure of 1.849 atm and temperature?

@X@user.full_name@X@ @GMU: Assume you have an open ended manometer filled with an oil having a density of 0.7791 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 134.78 cm higher than the level in the arm connected to the gas sample? The atmospheric pressure reading is 758.94 mm Hg.

@X@user.full_name@X@ @GMU: How much work has been done when the volume of a gas changes from 16.85 L to 23.54 L at a constant pressure of 2.868 atm and temperature?

@X@user.full_name@X@ @GMU: Draw the lewis dot structure of SO2. How many lone-pairs of electrons (first) and bonding pairs of electrons exist on the molecule SO2?

@X@user.full_name@X@ @GMU: A gas mixture contained 33.69% by weight HCN and 66.31% N2O4. What was the mole fraction of HCN?

@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.