HO2 is a extremely reactive chemical species that acts a role in atmospheric chemistry. If the rate of the gas-phase reaction HO2(g) + HO2(g) -->H2O2(g) + O2(g) is second order in [HO2]with a rate constant at 25 °C of 1.4 × 10^9 L/(mol*s). Presume some HO2 with a preliminary concentration of 2.0 × 10-8M could be confirmed at 25 °C. Compute the concentration that would remain after 1.0 s, presuming no other reactions take place.