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@X@user.full_name@X@ @GMU: What is the pOH of 1.11e-3 M HCl?

@X@user.full_name@X@ @GMU: NO2 at 354°C decomposes to form NO and O2 according to second order kinetics (see reaction below). The half-life for this reaction was measured to be 1.91e2 s when the initial concentration of NO2 was 2.91e-3 M. What is the rate constant for this reaction?2NO2(g) → 2NO(g) + O2(g)

@X@user.full_name@X@ @GMU: What is the rate of consumption of C (M/s), if the rate of consumption of A is 0.225 M/s? Use the reaction below:4A + 5B + 6C → products

@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 8.59e-6?2C2H2(g) + H2(g) → C4H6(g) ΔGo = -216.790 kJ.

@X@user.full_name@X@ @GMU: What is the vapor pressure of carvone, an oil giving spearint its odor, at 465.5 K if its heat of vaporization and normal boiling point are 55.00 kJ/mol and 500.6 K, respectively?

@X@user.full_name@X@ @GMU: What is the cell voltage for the following cell?3Sn2+(aq) + 2Cr(s) → 3Sn(s) + 2Cr3+(aq) ΔGo = -347.346 kJ

John Schreifels @GMU: What is the correct expression for the solubility product of silver carbonate?Ag2CO3(s) → 2Ag+(aq) + CO32-(aq)

John Schreifels @GMU: What is the balanced reaction at the cathode for the following galvanic cell?Cr(s)| Cr3+(aq) || Cu2+(aq) | Cu(s)

@X@user.full_name@X@ @GMU: How much time in minutes would it take for a 1.8567 g sample of 235U to decay to a mass of 1.3087 g if it has a half-life of 7.800e8 s.

@X@user.full_name@X@ @GMU: The osmotic pressure of an unknown solution is 0.853 atm at 17.61 °C. Which of the solutions below is the most likely one? Assume any salt is completely ionic!