What is the correct equilibrium constant expression, Kp, for the following reaction?2NO2(g) + 7H2(g) ⇋ 2NH3(g) + 4H2O(g)

@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 0.7958 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 1126.49 cm?

@X@user.full_name@X@ @GMU: From the reaction below, calculate the free energy of formation for CH4(g) at 25°C, if ΔGfo(C7H14(g)) is 95.887 kJ/mol.7CH4(g) → C7H14(g) + 7H2(g) ΔGo = 451.415 kJ/mol

@X@user.full_name@X@ @GMU: What must the reaction quotient Q be, if the free energy is -539.778 kJ at 25.0oC?3C2H2(g) → C6H6(g) ΔGo = -498.180 kJ.

@X@user.full_name@X@ @GMU: What is the coefficient, b, in the reaction below, if Kc = 4.86e-5 and Kp = 1.62e-3 at 133.41°C?3A(s) + bB(g) → 4C(g)

@X@user.full_name@X@ @GMU: A compound contains only cesium and bromine. A sample weighing 4.43 g of this compound contained 2.76 g of cesium. How many grams of bromine would there be in another sample of this compound containing 4.92 g of cesium?

@X@user.full_name@X@ @GMU: Which of the answers below is the correct representation according to the shorthand method of the following cell?2Cu+(aq) + undefined → 2Cu(s) + Ni2+(aq)

@X@user.full_name@X@ @GMU: A flexible container was filled with NO2 gas at a pressure of 1.720 atm and volume of 10.088 L. What volume would this same gas occupy if the pressure increased to 3.711 atm? Assume temperature is constant.

What would be considered a normal hair assessment? Select All That Apply.

@X@user.full_name@X@ @GMU: The density of a particular gas is 5.7440 g/L at 812.98 mm Hg and 24.80 °C. What is the molecular mass of the gas?