The reaction mechanism is given below. elementary step 1 : Br2 ⇋ 2Br fast elementary step 2: H2 + Br à HBr + H slow rate determining step elementary step 3: H + Br2 à HBr + Br fast Overall reaction is H2 + Br2 à 2HBr k1 is the forward reaction rate constant of step 1, k-1 reverse reaction rate constant of step 1, k2 for reaction rate constant of step 2 and k3 for reaction rate constant of step 3. What is the molecularity of step 2? Give the chemical formula of the intermediate(s) in the reaction Deduce the rate law in terms of the reagents for the reaction using the elementary steps.

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Which is the correct depiction of the transition state for the reaction shown below? a с A b B Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. с H3CO H3CO. d D CH3 e C&D CH3 possible transition states CH3 CH3 CH3 CH3 H3CO H3CO H3CO H3CO yox yox sxx sx H3CO H3CO H3CO CH3 CH3 CH3 CH3 C D A B A H3CO H3CO, CH3 CH3

16) The reaction (C2H5)2(NH2) + 12 (C2H5)2(N2) + 2HI gives the following data. Expt Initial(C2H5)2(NH2) mol L-1 Initial 12 mol L-1 Initial rate of formation of (C2H5)2(N2) mol L-1min-1 1 0.015 0.015 3.15 x 10-1 2 0.015 0.045 9.45x 10-1 3 0.030 0.045 18.9 x 10-1 a) Determine the order of the reaction with respect to each reactant. Explain how you arrived at each answer. (Show your method) b) What is the overall order of the reaction? c) Write the rate law expression. d) Calculate the rate constant, k and provide the proper units. e) If (C2H5)2(N2) is formed at a rate of 9.45 M/s in experiment 3, what is the rate of appearance of HI? f) In experiment 3, assuming it goes to completion, if all of [(C2H5)2(NH2) ] is reacted, what would be the amount of 12 remaining?