The decomposition reaction of dinitrogen pentoxide (N2O5) is: 2 N2O5 → 4 NO2 (g) + O2 (g) a)Calculate the concentration of N2O5 remaining 460. s after the start of the decomposition at 65 oC when its initial concentration was 0.040 mol/L. The rate law for this reaction is rate=k[N2O5] with a rate constant of k=5.2x10-2 s-1. b)Calculate the half-life for this reaction.

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