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The first-order decomposition of N2O5at 328 K has a rate constant of 1.70 × 10−3s−1. If the initial concentration of N2O5is 2.88 M, what is the concentration of N2O5after 12.5 minutes? A.0.124 M. D.0.355 M. B.0.805 M. E.0.174 M. C.2.82 M