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An acidified solution of hydrogen peroxide reacts with iodide ions. H 2 O 2 (aq) + 2H

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An acidified solution of hydrogen peroxide reacts with iodide ions.

H2O2(aq) + 2H+(aq) + 2I–(aq) → 2H2O(l) + I2(aq)

The rate equation for this reaction is rate = [H2O2] [I–] The mechanism below has been proposed for this reaction.

Explain why this mechanism is consistent with the rate equation.

Transcribed Image Text:

slow H,0, +I> H,0 + IO H,0 + 10- fast H* + IO- > HIO fast HIO + H* + I -I, + H,0

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The rate equation rate H2O2 I suggests that the reaction rate depends on both hydrogen peroxide and ...View the full answer


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Cambridge International AS And A Level Chemistry Coursebook

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ISBN: 9781316637739

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Hydrogen peroxide can be used as a mild antiseptic to curb superficial skin infections such as athlete’s foot, but only in diluted quantities. To combat stinky feet, try soaking your feet in a solution of 1 part 3% hydrogen peroxide and 3 parts warm water for 15-20 minutes, then drying them thoroughly. This will kill odor-causing bacteria and soften your feet. To treat athlete\'s foot, you can use a similar solution, but only in diluted quantities, and soak your feet for 30 minutes. Hydrogen peroxide can also be used to keep vegetables fresh by adding 1/4 cup to a bowl of cold water, soaking the vegetables for 20-30 minutes, then draining, drying, and refrigerating them. Alternatively, you can spray vegetables with a solution of 3% hydrogen peroxide and let them stand for a few minutes before rinsing and drying. To keep leftover salad fresh, spray it with a solution of 1/2 cup water and 1 Tbsp. 3% hydrogen peroxide, drain, cover, and refrigerate.

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