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The reactants A and B are mixed, and the reaction is timed until a color change occurs. Determine the order of the reaction with respect to reactant A if the data are as follows.[A][B]Time (s)0.1000.140250.0500.140500.1000.070100 A. 1 B. 1/2 C. 0 D. -1/2 E. 2

Question

The reactants A and B are mixed, and the reaction is timed until a color change occurs. Determine the order of the reaction with respect to reactant A if the data are as follows.[A][B]Time (s)0.1000.140250.0500.140500.1000.070100 A. 1 B. 1/2 C. 0 D. -1/2 E. 2

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Solution

To determine the order of the reaction with respect to reactant A, we need to look at how changes in the concentration of A affect the time it takes for the reaction to occur.

From the data given, we can see that when the concentration of A is halved (from 0.100 to 0.050), the time for the reaction to occur doubles (from 250s to 500s). This suggests that the reaction is first order with respect to A, because the time for the reaction is inversely proportional to the concentration of A.

Therefore, the answer is A. 1.

This problem has been solved

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