The oxidation of Cr 3+ to CrO 4 2- can be accomplished using Ce 4+ in a buffered solution. The following data were obtained: -Determine the order in the rate law of the species Cr³⁺.

Question

Quizplus · Accepted Answer

The rate law can be written as: rate = k[CrS1U1P13][CeS1U1P14][S1S1P0]. The power to which each species is raised is known as the order in the rate law. The order with respect to [CrS1U1P13] cannot be determined from the given data as it remains constant throughout the experiment. However, it is observed that when the concentration of [CeS1U1P14] is doubled, the rate also doubles. This suggests that the reaction is first order with respect to [CeS1U1P14]. Similarly, when the concentration of [S1S1P0] is doubled, the rate quadruples, indicating that the reaction is second order with respect to [S1S1P0]. Therefore, the overall order in the rate law is 1 + 2 = 3, and the best choice is C.

The Oxidation of Cr3+ to CrO42- Can Be Accomplished Using

The Oxidation of Cr³⁺ to CrO₄^2- Can Be Accomplished Using