chemistry

xvena123
timer Asked: Nov 11th, 2015

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50) I don't understand what to do

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where the rate law is A[A] Rate = = k[A][B]? ΔΙ An experiment is carried out where [A], = 1.0 x 10-2 M, (Bl. = 3.0 M, and [C]. = 2.0 M. The reaction is started, and after 8.0 seconds, the concentration of A is 3.8 X 10-3 M. a. Calculate k for this reaction. b. Calculate the half-life for this experiment, c. Calculate the concentration of A after 13.0 seconds, d. Calculate the concentration of C after 13.0 seconds. Reaction Mechanisms 49. Write the rate laws for the following elementary reactions. a. CH NC(8) → CHCN(8) b. Oz(8) + NO(g) + O2(8) + NO2(8) c. 03(8) + O2(8) + O(8) c. 03(8) + (8) +202(8) 50. The mechanisms shown below have been proposed to explain the kinetics of the reaction considered in Question 11. Which of the following are acceptable mechanisms? Explain. Mechanism 1: 2H2(8) + 2NO(8) N2(8) + 2H20(8) Mechanism II: Slow H2(8) + NO(g) + H2O(g) + N(8) N(8) + NO(g) - → N₂(8) + 0(8) H2(g) + O(g) + H2O(8) Fast Fast Mechanism III: Slow Hz(8) + 2NO(g) -> N20(8) + H2O(g) N20(8) + H2(8) → N2(8) + H2O(8) Fast 51. A proposed mechanism for a reaction is Slow CH,Br - C_H+ + Br C4H+ + H2O C C_H,OH, H + H2O Fast
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