@X@user.full_name@X@ @GMU: ACS-It took 658.4 s for 44.32% of a substance to react according to first-order kinetics. What is the value of the rate constant?

@X@user.full_name@X@ @GMU: What is the coefficient, b, in the reaction below, if Kc = 3.45e-3 and Kp = 0.1814 at 367.42°C?2A(s) + bB(g) → 4C(g)

@X@user.full_name@X@ @GMU: ACS-Consider the reaction.3SO2(g) ⇋ 2SO3(g) + S(s)What is the correct expression for Kc?

@X@user.full_name@X@ @GMU: ACS-Consider the reaction.I2(s) + 5F2(g) ⇋ 2IF5(g)What is the correct expression for Kc?

@X@user.full_name@X@ @GMU: What is the coefficient, b, in the reaction below, if Kc = 1.60e-4 and Kp = 40.0469 at 494.05°C?3A(s) + bB(g) → 5C(g)

@X@user.full_name@X@ @GMU: ACS-Radioactive substances decay by first-order kinetics. How many years would be required for a sample containing americium-95 to decrease to 40.15% of its initial activity? The half-life of americium-95 is 4.58e2 years.

@X@user.full_name@X@ @GMU: While one mole of SO2 gas was being compressed, the pressure increased from 1.352 atm to 2.807 atm. What was the ΔS of the process?

@X@user.full_name@X@ @GMU: ACS-Which of the following is the weakest reducing agent? Pd2+ + 2e- → Pd E° = 0.990 Au1+ + 1e- → Au E° = 1.680 Cd2+ + 2e- → Cd E° = -0.400 Ag1+ + 1e- → Ag E° = 0.800

@X@user.full_name@X@ @GMU: What is the balanced reaction for the following galvanic cell?Cd(s)| Cd2+(aq) || Al3+(aq) | Al(s)

@X@user.full_name@X@ @GMU: What is the coefficient, b, in the reaction below, if Kc = 1.30e-5 and Kp = 4.06e-4 at 108.48°C?3A(s) + bB(g) → 5C(g)