Please solve The chemistry of smog formation includes NO_3 as an intermediate in
ID: 941814 • Letter: P
Question
Please solveThe chemistry of smog formation includes NO_3 as an intermediate in several reactions. If Delta [NO_3]/Delta t is -2.2 Times 10^5 mM/min in the following reaction, what is the rate of formation of NO_2? NO_3(g) + NO(g) rightarrow 2 NO_2 (g) What is the rate of the change of [NO_2] in the following reaction if Delta [NO_3]/Delta t is -2.3 mM/min? 2NO_3(g) rightarrow 2NO_2(g) + O_2(g) Nitrate ion reacts with ozone in aqueous solution, producing nitrate ion and oxygen: NO_2^- (aq) + O_3(g) rightarrow NO_3^- (aq) + O_2(g)g The following data were collected for this reaction at 298 K. Calculate the average reaction rate between 0 and 100 mu s (microseconds) and between 200 and 300 mu s.
Explanation / Answer
Solution:
Formula for average reaction rate is
rA= - dCa/dt
where rA is rate of reaction, dt is change in time and change concentration of O3 as ozone is limiting reactant.
a) rA= - dCa/dt
= - (9.92*10^-3 - 1.11*10^-2)/100
= 1.18*10^-5 M/microsec.
b) rA = - (8.18*10^-3 - 8.83 *10^-3)/100
= 6.5*10^-6 M/microsec.