The decomposition of aqueous hydrogen peroxide is

Chapter 22, Problem 111

(choose chapter or problem)

The decomposition of aqueous hydrogen peroxide is catalyzed by A proposed mechanism for this catalysis involves two reactions. In the first reaction, is reduced by In the second, the iron is oxidized back to its original form, while hydrogen peroxide is reduced. Write an equation for the overall reaction and show that the overall reaction is indeed spontaneous. What are the minimum and maximum values of for a catalyst to function in this way? Which of the following should be able to catalyze the decomposition of hydrogen peroxide by the mechanism outlined here: (a) (b) (c) (d) In the reaction between iodic acid and hydrogen peroxide in the presence of starch indicator, the color of the reaction mixture oscillates between deep blue and colorless. What is the basis of these changes in color? Will this oscillation of color continue indefinitely? Explain. [Hint: Refer to in Chapter 14, particularly to equation (c).]