The hypochlorite ion oxidizes the iodide ion in aqueous solution as represented by the following equation:
OCl^-(aq) + I^-(aq) → OI^-(aq) + Cl^-(aq)
The rate law for this reaction is Rate = k
) If time is measured in seconds and concentration is measured in moles per liter,what are the units for k?

Question

The hypochlorite ion oxidizes the iodide ion in aqueous solution as represented by the following equation:
OCl^-(aq) + I^-(aq) → OI^-(aq) + Cl^-(aq)
The rate law for this reaction is Rate = k

The hypochlorite ion oxidizes the iodide ion in aqueous solution as represented by the following equation: OCl<sup>-</sup>(aq) + I<sup>-</sup>(aq) → OI<sup>-</sup>(aq) + Cl<sup>-</sup>(aq) The rate law for this reaction is Rate = k ) If time is measured in seconds and concentration is measured in moles per liter,what are the units for k? A) mol<sup>2</sup>/(L<sup>2</sup> ∙ s) B) L/(mol ∙ s) C) 1/s D) L<sup>2</sup>/(mol<sup>2</sup> ∙ s) E) mol/(L ∙ s)

) If time is measured in seconds and concentration is measured in moles per liter,what are the units for k?

Quizplus · Accepted Answer

The rate law indicates that the rate of the reaction is proportional to the concentration of the hypochlorite ion and the iodide ion, raised to the first power each. Therefore, the unit of the rate constant k is (mol/L)^-2/s, which simplifies to 1/s. Choice (C) is the correct answer.

The Hypochlorite Ion Oxidizes the Iodide Ion in Aqueous Solution