NOTE: This is the second time that this question has been posted, so please DO NOT respond unless you are 100% sure about your response. The answer is NOT 3.87 x 10^-9 M.
124. At combustion temperatures, the equilibrium constant for the reaction N2 + O2 -> 2NO is about 5.0E-14. Calculate the concentration of nitric oxide that is in equilibrium with atmospheric levels of nitrogen and oxygen.