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This reaction takes place in two steps as given below : Step 1 . H2O2 + I=>H2O + IO- (slow)

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asked Dec 16, 2017 in Chemistry by sforrest072 (157,439 points) ● 61 ● 410 ● 937

Consider the decomposition reaction :

This reaction takes place in two steps as given below :
Step 1           . H2O2 + I=>H2O + IO- (slow)
Step 2.           H2O2 + IO- => H2O + I- + O2 (fast)
 

(a) Determine rate law expression.
 

(b) Determine the order of reaction.

1 Answer

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answered Dec 16, 2017 by mdsamim (213,225 points) ● 5 ● 10 ● 15
selected Dec 16, 2017 by sforrest072
 
Best answer

(a) Rate = K[H2O2][I-] because second step is rate determining step.
 

(b) Order = 1 + 1 = 2

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