In this experiment you studied the following net chemical reaction that we will call reaction (1): H,0, + 2 H* + 21 -1, + 2 H,0 (1) with the following proposed three-step reaction mechanism: H,0, + - OH" + HOI OH + H* - H,0 Step 1: (slow) Step 2: (very fast) Step 3: (fast) HOI + H* + -2 + H20 In neutral solution containing only hydrogen peroxide and iodide ion, a different net chemical reaction occurs: 2 H,0, - 2 H,0 + 0,(g) (2) The following three-step reaction mechanism has been proposed to explain reaction (2): H,0, +1 - OH + HOI Step 2a: (very fast) OH + HOI - 10 + H,0 Step 1: (slow) H20, + 10 I + H20 + 0,(g) 2 HA0 - 2 H0t O Show that when you sum the three reaction steps the net result is reaction (2): Step 3a: (fast)

In this experiment you studied the following net chemical reaction that we will call reaction (1): H,0, + 2 H* + 21 -1, + 2 H,0 (1) with the following proposed three-step reaction mechanism: H,0, + - OH" + HOI OH + H* - H,0 Step 1: (slow) Step 2: (very fast) Step 3: (fast) HOI + H* + -2 + H20 In neutral solution containing only hydrogen peroxide and iodide ion, a different net chemical reaction occurs: 2 H,0, - 2 H,0 + 0,(g) (2) The following three-step reaction mechanism has been proposed to explain reaction (2): H,0, +1 - OH + HOI Step 2a: (very fast) OH + HOI - 10 + H,0 Step 1: (slow) H20, + 10 I + H20 + 0,(g) 2 HA0 - 2 H0t O Show that when you sum the three reaction steps the net result is reaction (2): Step 3a: (fast)

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter11: Chemical Kinetics

Section: Chapter Questions

Problem 11.65PAE

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