1. H 2 O 2(aq) +I - (aq) H 2 O ( l ) +IO - (aq) (slow) 2. IO - (aq) +H 2 O 2(aq)

Question

1.   H2O2(aq) +I-(aq) H2O(l) +IO-(aq)              (slow)

2.   IO-(aq) +H2O2(aq) H2O(l) + O2(g) +I-(aq)   (fast)

a. Assuming that thefirst step of the mechanism is rate determining, predict the rateexpression for the overall process. b.Write the chemical equation for the overall process.c. Identify the intermediate, if any, inthe mechanism. d. What distinguishes anintermediate from a catalyst in a chemical reaction?

Explanation / Answer

a)rate = k [H2O2][I-] b)2H202>2 H2O+O2 c) intermediates are IO- d) interemdieates are used and catylists are used and regeneratedin teh final step

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