The Mechanism for the Reaction 2H₂O₂(aq)  2H₂O

question 51

Multiple Choice

The mechanism for the reaction 2H₂O₂(aq)  2H₂O( ) + O₂(g) in the presence of I^-(aq) is proposed to be: Step 1: H₂O₂(aq) + I^-(aq)  H₂O( ) + OI^-(aq)
(slow)
Step 2: H₂O₂(aq) + OI^-(aq)  H₂O( ) + O₂(g) + I^-(aq)
(fast)
What is the molecularity of the rate-determining step?

• A) zeromolecular
• B) unimolecular
• C) bimolecular
• D) termolecular
• E) More information is needed to answer this question.

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Definitions:

Independent Variable

A variable that is manipulated or changed in an experiment to determine its effect on the dependent variable.

Room Temperature

A general description of a comfortable indoor environment, typically considered to be around 20°C (68°F) to 22°C (72°F).

Noise Level

The measurement of the ambient level of sound, often referring to the background sound present in a given environment.

Internal Validity

The degree to which a study’s results are attributable to the independent variable, rather than other factors, indicating the study accurately reflects the relationship being tested.