The reaction of iodide ion with hypochlorite ion, OCI - (the active ingredient in a chlorine bleach, such as Chlorox), follows the equation OCI- + I- OI- + CI- It is a rapid reaction that gives the following rate data:
Initial Concentrations (mol L-) Rate of Formation of Cl- (mol L-1s-1)
[OCI-] [I-] (mol L-1s-1)
1.6 x 10-3 1.6 x 10-3 1.75 x 104
7.6 x 10-3 1.6 x 10-3 8.31 x 104
1.6 x 10-3 9.6 x 10-3 1.05 x 105
What is the overall order of the reaction?