Question: please help #1 and #2 moll mol L- AP Kinetics FRQ's Show work on a separate sheet of paper & place the answers on this
moll mol L- AP Kinetics FRQ's Show work on a separate sheet of paper & place the answers on this page. 1. For a hypothetical chemical reaction that has the Stoichiometry 2 X + Y Z, the following initial rate data were obtained. Al measurements were made at the same temperature Initial Rate of Formation of Z Initial [X] Initial [Ylo moll-1 sec1 x Y double 17.0 x 104 0:20 ) de vole 0.10 double ) 1.4 x 10-3 0.40 2.8 x 10-3 0.40 0.40 4.2 x 10-3 0.60 0.60 (a) Give the rate law for this reaction from the data above. R=k[Y] a (b) Calculate the specific rate constant for this reaction and specify its units 0.007 sec- () How long must the reaction proceed to produce a concentration of equal to 0.20 molar, if the initial reaction concentrations are [X]. -0.80 molat, [Yl. -0.60 molar and [Z]o - Omolar? (a) Select from the mechanisms below the one most consistent with the observed data, and explain your choice. In these mechanisms Mand N are reaction intermediates (1) X Y M (slow) X+M-Z (fast) (2) X+X+M (fast) Y+MZ (slow) (3) YM (slow) M+X+N (fast) NX-Z (fast) 2. 2 CO2()+F2(E) -- 2 CIOsFig) The following results were obtained when the reaction represented above was studied at 25C. Initial [CIO Initial [F] (mol L-1) Initial Rate of Increase of [CIO F1 (mol Ll see) Experiment (mol L- 1 2 3 0.010 0.010 0.020 0.10 0.40 0.20 24x10-3 9610-3 9.6x10-3 (a) Write the rate law expression for the reaction above (b) Calculate the numerical value of the rate constant and specify the units (e) In experiment 2. what is the initial rate of decrease of [F31 (d) Which of the following reaction mechanisms is consistent with the rate law developed in (a). Jutify your choice 1 CIO - CO2 CIO - COFF (slow CIO, F-003 (fast 11 F-27 2010
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