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@X@user.full_name@X@ @GMU: Closed-tube manometers work exactly as barometers except by connecting them to a container its pressure can be measured. Assume you have a closed-ended manometer filled with an oil having a density of 0.8107 g/mL at 20°C rather than mercury (density = 13.546 g/mL at 20°C). What is the pressure if the height of the oil column is 1152.70 cm?

@X@user.full_name@X@ @GMU: Assume you have an open ended manometer filled with an oil having a density of 0.7277 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 178.00 cm higher than the level in the arm connected to the gas sample? The atmospheric pressure reading is 731.42 mm Hg.

@X@user.full_name@X@ @GMU: How much work has been done when the volume of a gas changes from 12.47 L to 18.88 L at a constant pressure of 2.138 atm and temperature?

@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?