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@X@user.full_name@X@ @GMU: What is the mass (grams) of one atom of gold?

@X@user.full_name@X@ @GMU: Which of the answers below is an example of a(n) strong electrolyte reaction?

@X@user.full_name@X@ @GMU: What must the reaction quotient Q be, if the free energy is -818.008 kJ at 25.0oC?5C2H2(g) + 4 H2(g) → C10H18(g) ΔGo = -793.710 kJ.

@X@user.full_name@X@ @GMU: A gas mixture contains an unknown amount of C3H8 and 0.1508 mol of He. How many moles of C3H8 are there, if the total pressure is 372.93 mm Hg and the partial pressure of C3H8 is 209.51 mm Hg?

@X@user.full_name@X@ @GMU: A gas mixture contains an unknown amount of UF6 and 0.1741 mol of CH4. How many moles of UF6 are there, if the total pressure is 462.98 mm Hg and the partial pressure of UF6 is 206.04 mm Hg?

@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)._CrO42- + _H2O2 → _Cr(OH)3 + _O2

@X@user.full_name@X@ @GMU: What is Kp for the reaction below, if Kc = 1.17e-5 at 206.1°C?3A(s) + 4B(g) → 3C(g)

@X@user.full_name@X@ @GMU: A gas mixture contains an unknown amount of CH4 and 0.1980 mol of HBr. How many moles of CH4 are there, if the total pressure is 327.65 mm Hg and the partial pressure of CH4 is 146.15 mm Hg?

@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?