The first-order rate constant for the decomposition of N₂O5, given below, at 70°C is 6.82 x 10 2 N₂05(9)→ 4 NO₂(g) + O₂(g) (a) How many moles of N₂O5 will remain after 3.0 min? 0.0146 mol (b) How many minutes will it take for the quantity of N₂O5 to drop to 0.005 mol? min (c) What is the half-life of N₂O5 at 70°C? min

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