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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 0.7939 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 1088.93 cm?

@X@user.full_name@X@ @GMU: ACS-Using the given rate data what is the correct rate law for the reaction below?H2 + Br2⇋ 2 HBr  Exp [H2]o [Br2]o Initial Rates, Ms-1 1 0.126 0.126 1.00 2 0.252 0.126 4.00 3 0.252 0.165 5.24

@X@user.full_name@X@ @GMU: A compound contains only magnesium and fluorine. A sample weighing 5.56 g of this compound contained 2.17 g of magnesium. How many grams of fluorine would there be in another sample of this compound containing 4.16 g of magnesium?

Which of the following conditions will cause equilibrium to shift to the rightFeO(s) + CO(g) ⇋ Fe(s) + CO2(g)

@X@user.full_name@X@ @GMU: What is the standard cell voltage at 25.0oC for the reverse of the reaction below?Hg2+(aq) + Cu(s) → Hg(l) + Cu2+(aq) K = 1.78e17

@X@user.full_name@X@ @GMU: What is the balanced reaction for the following galvanic cell?Sn(s)| Sn2+(aq) || Cu2+(aq) | Cu(s)

@X@user.full_name@X@ @GMU: Kaolinite, a clay mineral with the formula Al4Si4O10(OH)8, is produced naturally by the chemical weathering of aluminum silicate minerals like feldspar (granite). Kaolinite is used industrially as filler in slick-paper for magazines and as a raw material for ceramics. How many grams of oxygen are present in 10.77 g of kaolinite?

@X@user.full_name@X@ @GMU: A flexible container was filled with CH4 gas at a pressure of 1.07 atm and volume of 15.018 L. What pressure would this gas exert if the volume increased to 25.44 L? Assume temperature is constant.

@X@user.full_name@X@ @GMU: What is the energy of photons with a frequency of 8.464e+14 s-1? Remember Planck’s constant is 6.626×10-34 J×s

@X@user.full_name@X@ @GMU: What is the total concentration of ions in a solution consisting of 0.5236 M KBr?