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@X@user.full_name@X@ @GMU: The osmotic pressure of an unknown solution is 747.829 mm Hg at 29.14 °C. Which of the solutions below is the most likely one? Assume any salt is completely ionic!

@X@user.full_name@X@ @GMU: What is the rate of consumption of B (M/s), if the rate of consumption of C is 0.334 M/s? Use the reaction below:2A + 4B + 5C → products

@X@user.full_name@X@ @GMU: Determine the concentration of A after 50.385 minutes if the initial concentration of A was 0.3632 M and the first order rate constant is 1.501e-4 s-1.

@X@user.full_name@X@ @GMU: What is the value of Ksp in water, if 1.91e-8 M of A2B3 dissolves according to the reaction below?A2B3(s)→2A(aq) + 3B(aq) where A and B are ions

@X@user.full_name@X@ @GMU: What would the pOH be after addition of 13.81 mL of 0.1000 M NaOH to 25.00 mL of 0.1000 HA (a weak acid, Ka = 3.01e-4)?

@X@user.full_name@X@ @GMU: What is the standard free energy change for the following cell?3Sn2+(aq) + 2Al(s) → 3Sn(s) + 2Al3+(aq) Ecoell = 1.520V

@X@user.full_name@X@ @GMU: To what temperature would you have to heat methanol, CH3OH,(l) to cause its vapor pressure to become 423.3 mm Hg if its heat of vaporization and boiling point are 37.40 kJ/mol and 338.1 K, respectively?

@X@user.full_name@X@ @GMU: The cell potential was -0.377 V at 25oC and a Sn4+(aq) concentration of 0.145 M. What was the hydronium ion concentration? The H2(g) pressure was 1 atm at 25oC.2H+(aq) + Sn2+(aq) → Sn4+(aq) + H2(g) Ecoell = -0.150 V

@X@user.full_name@X@ @GMU: What is the concentration of OH- in 0.1232 M H2CO3 ? See reaction belowH2CO3 + H2O → HCO-3 + H3O+ Ka = 4.300×10-7

@X@user.full_name@X@ @GMU: Initially there were equilibrium concentrations of 0.3387 M A, 0.2024 M B, and 0.1151 M C. Which change will cause the equilibrium to shift from left to right if the reaction is endothermic? Use the reaction below.5A(aq) → 3 B(aq) +2 C(aq) K = 0.999