Portage Learning CHEM 104 M1 -M6 Exam Graded A

Module 1: Chem 104 M1 -M6 Exam Graded A Question 1 In the reaction of gaseous N2O5 to yield NO2 gas and O2 gas as shown below, the following data table is obtained: → 4 NO2 (g) + O2 (g) 1. Using the [O2] data from the table, show the calculation of the instantaneous rate early in the reaction (0 secs to 300 sec). 2. Using the [O2] data from the table, show the calculation of the instantaneous rate late in the reaction (2400 secs to 3000 secs). 3. Explain the relative values of the early instantaneous rate and the late instantaneous rate. Your Answer: 1. rate = (0.014 - 0) / (300 - 0) = 4.67 x 10-5 mol/Ls 2. rate = (0.090 - 0.083) / () = 1.167 x 10-5 mol/Ls 3. The late instantaneous rate is smaller than the early instantaneous rate.