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Refer to the Reaction
Cr2O72-(aq) + 6 I-(aq) + 14 \rightarrow

Question 39

Multiple Choice

refer to the reaction
Cr2O72-(aq) + 6 I-(aq) + 14 H+(aq) \rightarrow 2 Cr3+(aq) + 3 I2(aq) + 7 H2O(l)
for which the following initial instantaneous rates of reaction were obtained.
 refer to the reaction Cr<sub>2</sub>O<sub>7</sub><sup>2-</sup>(aq)  + 6 I<sup>-</sup>(aq)  + 14 H<sup>+</sup>(aq)  \rightarrow  2 Cr<sup>3+</sup>(aq)  + 3 I<sub>2</sub>(aq)  + 7 H<sub>2</sub>O(l)  for which the following initial instantaneous rates of reaction were obtained.    -The rate constant, k, for this reaction is: A)  less than 10<sup>-6</sup> B)  between 10<sup>-6 </sup>and 10<sup>-3</sup> C)  between 10<sup>-3</sup> and 10<sup>3 </sup> D)  between 10<sup>3 </sup>and 10<sup>6</sup> E)  more than 10<sup>6</sup>
-The rate constant, k, for this reaction is:


A) less than 10-6
B) between 10-6 and 10-3
C) between 10-3 and 103
D) between 103 and 106
E) more than 106

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