Question

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6. (4 pts) What is the value of K for the b for the hypothetical reaction: athetical reaction: 2D = A + 2B If the following information is known about the following elementary rxns: A + 2B Sc K = 3.3 CS2D K = 0.041 A) 81 B) 24 [041] C) 7.4 D) 0.45 E) 0.012 [3.3] 7. 14 pts) For the above Q6 hypothetical reaction, calculate the AG of the overall reaction at equilibrium (assume R = 8.315 J/mol K and T = 298 K): A) -10.89 kJ/mol B) -7.87 kJ/mol C) -4.96 kJ/mol D) 1.98 kJ/mol E) 10.95 kJ/mol 8) (4 pts) The brown gas NO, and the colorless gas N,Oexist in equilibrium, N,0 2NO, In an experiment, 0.412 mole of N, O, was introduced into a 5.00 L vessel and was allowed to decompose until equilibrium was reached. The concentration of N20, at equilibrium was 0.07M. Calculate the approximate ke for the reaction. A) 10.0 N2O4 Z 2 NO2 B) 2.12 O C) 0.88 D) 0.09 E) 0.009 cix •07-X -07-X 2x 9) (4 pts) Carbon monoxide binds to hemoglobin (Hb) and is fatal. Coupled equilibria reactions show how CO and O, bind to hemoglobin: Hb (CO) Hb+ 4CO (9) Hb + 402(g) Hb(O2) Hb (CO). +402(g) b(O2). + 4CO(g) Unfortunately, CO binding to hemoglobin (Hb) is 100% greater than 0. However, using the power of Le Chatelier's principle, we can save lives by shifting equilibrium to the right by: A) Increasing hemoglobin Hb (O) in the patient B) Increasing the concentration of C) A blood transfusion to increase more Hb in the patient D) Decreasing hemoglobin Hb(CO) in the patient E) All of the above approaches should be pursued to save lives.

Answer 1

Reversiny firat euation, we jet K CA+2B 3.3 Again, Reveraing ecand eguaton, we 1 0.04 et We Now, adding i) 4 (), A+ B К- 2 D 0.04 3.3 K .4