The following three step mechanism has been proposed for the oxidation of iodide ion by peroxide:

Question

H2o2 + I^- ----> HOI + OH^- Slow
OH^- + H^+ ----> H2O Fast
HOI + H^+ + I^+ ---> I2 + H2O Fast

A. What is the overall reaction described by this mechanism?

B. What is the differential (basic) rate law predicted by this mechanism?

Answer 1

HOI(aq) + H+ (aq)+ I-(aq) → I2(aq)+ H2O(l)