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The Following Mechanism Has Been Suggested for the Reaction Identify the Rate Law That Is Consistent with This Mechanism

Question 46

Multiple Choice

The following mechanism has been suggested for the reaction: H2O2+2H++2II2+2H2OH2O2+IHOI+OHSlowOH+H+H2OFastHOI+H++II2+H2OFast\begin{array}{ll}\mathrm{H}_{2} \mathrm{O}_{2}+2 \mathrm{H}^{+}+2 \mathrm{I}^{-} \rightarrow \mathrm{I}_{2}+2 \mathrm{H}_{2} \mathrm{O} \\\mathrm{H}_{2} \mathrm{O}_{2}+\mathrm{I}^{-} \rightarrow \mathrm{HOI}+\mathrm{OH}^{-} & \mathrm{Slow}\\\mathrm{OH}^{-}+\mathrm{H}^{+} \rightarrow \mathrm{H}_{2} \mathrm{O} & \mathrm{Fast}\\\mathrm{HOI}+\mathrm{H}^{+}+\mathrm{I}^{-} \rightarrow \mathrm{I}_{2}+\mathrm{H}_{2} \mathrm{O}& \mathrm{Fast}\end{array} Identify the rate law that is consistent with this mechanism.


A) Rate = k[H2O2][I-]
B) Rate = k[HOI][OH-]
C) Rate = k[OH-][H+]
D) Rate = k[HOI][H+][I-]
E) Rate = k[H2O2][[I-]2[H+]2

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