Pre-lab Questions 1. The following initial-rate data was obtained for the reacti

Question

Pre-lab Questions 1. The following initial-rate data was obtained for the reaction Rate (M. mln. 1) Trial [Br2] (M) 1 1.30 x 10-3 1.0 1.0 2 5.20 x 103 2.0 1.0 3 2.60 x 10 1.0 2.0 Determine the reaction rate law and the value of the rate constant using the method of initial rates described in the Introduction. Note: For this experiment, actual rates, not reaction times, are measured. 2. Is it possible to write the reaction mechanism from the data you will obtain in this lab? If you believe it is, describe how you would use your data to support the mechanism. If you believe it is not, explain what additional information you would require to determine the mechanism. 3. This video provides a nice explanation of the chemistry of the iodine clock reaction. In your experiment you'll use bromate instead of iodate but the chemistry is similar. http://www.youtube.com/watch?feature player detailpage&v; KWJpKNQfXWo In the slow motion video of the reaction, why is it that the color develops in different places all over the flask?

Explanation / Answer

1)
r = k[NO]2[Br2]         

5.20*10-3=k[2]2[1]
0.0013=k
r = 0.0013[NO]2[Br2]

Literary information:
if the power of the reactant is 1, then the rate increases 2-fold times(doubles) when the concentration of the reactant is doubled (because 21)

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