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The reaction between bromate ions and bromide ions in acidic aqueous solution is given by the...

The reaction between bromate ions and bromide ions in acidic aqueous solution is given by the equation

            BrO3- (aq)   +   5 Br – (aq)    +    6 H+ (aq) à   3 Br2 (l)   +   3 H2O (l)

The table below gives the results of four experiments. Using these data, determine the orders for all three reactants, the overall reaction order, and the value of the rate constant. What is the value of k? What are the units of k?

Experiment

Initial [BrO3-]

Initial [Br –]

Initial [H+]

Measured initial rate (mol/L·s)

1

0.10

0.10

0.10

8.0 x 10-4

2

0.20

0.10

0.10

1.6 x 10-3

3

0.20

0.20

0.10

3.2 x 10-3

4

0.10

0.10

0.20

3.2 x 10-3
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Answer #1

OVER ALL REACTION ORDER IS = 1+1+2 = 4

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