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The Data Below Were Determined for the Reaction S2O82-(aq)

Question 22

Multiple Choice

The data below were determined for the reaction S2O82-(aq) + 3I-(aq) → 2SO42-(aq) + I3-(aq) . The data below were determined for the reaction S<sub>2</sub>O<sub>8</sub><sup>2-</sup>(aq)  + 3I<sup>-</sup>(aq)  → 2SO<sub>4</sub><sup>2-</sup>(aq)  + I<sub>3</sub><sup>-</sup>(aq) .   Which rate law is consistent with the experimental data for this reaction? A)  rate = k[S<sub>2</sub>O<sub>8</sub><sup>2- </sup>][I <sup>-</sup>]<sup>3</sup> B)  rate = k[S<sub>2</sub>O<sub>8</sub><sup>2-</sup>] C)  rate = k[S<sub>2</sub>O<sub>8</sub><sup>2-</sup>]<sup>2</sup>[I <sup>-</sup>]<sup>2</sup> D)  rate = k[I <sup>-</sup>] E)  rate = k[S<sub>2</sub>O<sub>8</sub><sup>2-</sup>][I <sup>-</sup>] Which rate law is consistent with the experimental data for this reaction?


A) rate = k[S2O82- ][I -]3
B) rate = k[S2O82-]
C) rate = k[S2O82-]2[I -]2
D) rate = k[I -]
E) rate = k[S2O82-][I -]

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