The reaction of NO2 with ozone produces NO3 in a second-order reaction overall.
NO2(g) + O3(g) --> NO3 (g) + O2 (g)
If the rate constant for the reaction is 1.69 x 10^-4 M-1s-1 at 298 K. What is the rate of the reaction when [NO2] = 1.77 x 10^-8 M and [O3] = 1.59 x 10-7 M?
M/s

What is the rate of the appearance of NO3 under these conditions?
M/s