@X@user.full_name@X@ @GMU: What is the free energy change for the reaction below, if the reaction quotient, Q, at 25.0oC is equal to 5.91e-8?4C2H2(g) + 5 H2(g) → C8H18(g) ΔGo = -819.870 kJ.

@X@user.full_name@X@ @GMU: What is the correct name for Ni3N2?

The complete combustion of propanone, CH3COCH3, yields carbon dioxide and water as products (see reaction below). __CH3COCH3 + __O2 ↔ __CO2 + __H2O The ratio of the number of molecules of O2 required to molecules of propanone is

@X@user.full_name@X@ @GMU: What is the standard cell voltage at 25.0oC for the reverse of the reaction below?Hg2+(aq) + 2MnO42-(aq) → Hg(l) + 2MnO4-(aq) K = 6.44e9

@X@user.full_name@X@ @GMU: What is the total concentration of ions in a solution consisting of 0.4847 M NaBr?

@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 0.8359 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 1073.85 cm?

@X@user.full_name@X@ @GMU: Assume you have an open ended manometer filled with an oil having a density of 0.8319 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 137.76 cm lower than the level in the arm connected to the gas sample? The atmospheric pressure reading is 753.91 mm Hg.

@X@user.full_name@X@ @GMU: ACS-Determine the cell potential for the reaction below if = 0.4147M and = 0.0178M 2Cr3+(aq) + 3Cd(s) → 2Cr(s) + 3Cd2+(aq) E°= -0.340V

@X@user.full_name@X@ @GMU: ACS-Determine the cell potential for the reaction below if = 0.2205M and = 0.0157M 3Cu2+(aq) + 2Cr(s) → 3Cu(s) + 2Cr3+(aq) E°= 1.080V

@X@user.full_name@X@ @GMU: What is the balanced reaction for the following galvanic cell?Ni(s)| Ni2+(aq) || Sn2+(aq) | Sn(s)