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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 0.7546 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 917.71 cm?

@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 8.162 g of kaolinite?

@X@user.full_name@X@ @GMU: ACS-Which of the following is a reduction process?

@X@user.full_name@X@ @GMU: From the reaction below, calculate the free energy of formation for C7H16(g) at 25°C, if ΔGfo(CH4(g)) is -50.790 kJ/mol.7CH4(g) → C7H16(g) + 6H2(g) ΔGo = 364.105 kJ/mol

@X@user.full_name@X@ @GMU: What must the reaction quotient Q be, if the free energy is -942.278 kJ at 25.0oC?5C2H2(g) + 2 H2(g) → C10H14(g) ΔGo = -901.580 kJ.

@X@user.full_name@X@ @GMU: A gas mixture contains an unknown amount of Ne and 0.0810 mol of Xe. How many moles of Ne are there, if the total pressure is 841.70 mm Hg and the partial pressure of Ne is 481.57 mm Hg?

@X@user.full_name@X@ @GMU: A gas mixture contains an unknown amount of CO2 and 0.1740 mol of O2. How many moles of CO2 are there, if the total pressure is 707.52 mm Hg and the partial pressure of CO2 is 299.76 mm Hg?

Which patient is most at increased risk for constipation?

@X@user.full_name@X@ @GMU: Balance the reaction below; determine the sum of the coefficients; this is in a basic solution! Include co-efficients for any unshown species(such as water and hydroxide)._MnO4- + _H2O2 → _MnO2 + _O2

@X@user.full_name@X@ @GMU: A flexible container was filled with NO2 gas at a pressure of 1.74 atm and volume of 18.052 L. What pressure would this gas exert if the volume decreased to 7.49 L? Assume temperature is constant.