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3) Consider the reaction:        2 ClO2 (aq) + 2 OH-(aq) à ClO3- (aq) + ClO2- +...

3) Consider the reaction:        2 ClO2 (aq) + 2 OH-(aq) à ClO3- (aq) + ClO2- + H2O (l)

The rate of this reaction is given by: Rate = D[H2O]

                                                                        Dt

(a)   Give three equivalent expressions for the rate of this reaction in the boxes below: (6 pt)

Rate = Rate = D[H2O] =                               =                                      =                  

                           Dt

Exp

[ClO2], M

[OH-], M

Initial Rate (M/s)

1

0.0125

0.1200

4.32 x 10-3

2

0.0125

0.1600

5.76 x 10-3

3

0.0250

0.1200

1.73 x 10-2

4

0.0125

0.0800

2.88 x 10-3

(b) The initial reaction rates were measured for four different concentrations of ClO2 and OH-. The data is given above. Use these results to write the rate law.)

Rate =

                                                                                                           

(c) Find the rate constant.

Show how the units work out.

                                                                       

                                                                                                                        k =                             

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