HO2 is ahighly reactive chemical species that plays a role in atmostpheric chemistry. The rate of the gas-phase reaction HO2(g)+HO2(g)→H2O2(g)+O2 is second order in [HO2] with a rate constant at 25cof1.4x10e9L mol-1s-1. Suppose some HO2 with an initil concentration of 2.0e-9M could be confined at 25cdegress. Calculate the concentration that would remain after 1.0s, assuming no other reactions take place.