Chapter 11, Problem 29QAP

The equation for the reaction between iodide and bromate ions in acidic solution is

  $6{\text{I}}^{-}\left(aq\right)+{\text{BrO}}_3{}^{-}\left(aq\right)+6{\text{H}}^{+}\to 3{\text{I}}_2\left(aq\right){\text{+Br}}^{-}\left(aq\right)+3{\text{H}}_{\text{2}}\text{O}$The rate of the reaction is followed by measuring the appearance of I₂. The following data are obtained:

(a) What is the order of the reaction with respect to each reactant?

(b) Write the rate expression of the reaction.

(c) Calculate k.

(d) What is the hydrogen ion concentration when the rate is $5.00\times {10}^{-4}\text{mol}/\text{L}\cdot \text{h}$ and $\left[{\text{I}}^{-}\right]=\left[{\text{BrO}}_3{}^{-}\right]=0.0075M$?