What is the average rate of disappearance (M/s)of I^- between 800.0 s and 1200.0 s?

Question

Quizplus · Accepted Answer

The rate of disappearance can be calculated by dividing the change in concentration by the change in time. From the graph, at 800.0 s, the concentration of I^- is approximately 0.004 M, and at 1200.0 s, the concentration is approximately 0.001 M. Change in concentration = 0.004 M - 0.001 M = 0.003 M Change in time = 1200.0 s - 800.0 s = 400.0 s Rate of disappearance = (0.003 M) / (400.0 s) = 7.5 × 10^-6 M/s This is equivalent to 2.3 × 10^-5 ^- (since 1 M/s = 10^5 ^-/s). Therefore, choice D is the best answer.

What Is the Average Rate of Disappearance (M/s)of I- Between

What Is the Average Rate of Disappearance (M/s)of I^- Between