Problem

The following data were obtained for the concentration vs. time for a certain chemical rea...

The following data were obtained for the concentration vs. time for a certain chemical reaction. Values were measured at 1.00 s intervals, beginning at 0.00 and ending at 20.00 s. Concentrations in mM are:

10.00, 6.91, 4.98, 4.32, 3.55, 3.21, 2.61, 2.50, 2.22, 1.91, 1.80,1.65, 1.52,1.36, 1.42, 1.23,1.20, 1.13,1.09, 1.00,0.92

a. Plot concentration (c) vs. time. In c vs. time, and 1 /c vs. time.


b. Decide whether the data best fit zero-order, first-order, or second-order kinetics. Calculate the rate coefficient (with units) for the reaction and write the simplest mechanism you can for the reaction.


c. Describe an experimental method that you think might be used to measure the concentrations that are changing so rapidly. The reaction is nearly over in 20 s.

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Solutions For Problems in Chapter 9