The first-order rate constant for the decomposition of N2O5, given below, at 70°C is 6.82 x 10-3 s-1. Suppose we start with 0.0200 mol of N2O5(g) in a volume of 1.0 L. 2 N2O5(g) → 4 NO2(g) + O2(g)

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The first-order rate constant for the decomposition of N2O5, given below, at 70°C is 6.82 x 10-3 s-1. Suppose we start with 0.0200 mol of N2O5(g) in a volume of 1.0 L.

2 N2O5(g) → 4 NO2(g) + O2(g)
 
(a) How many moles of N2O5 will remain after 1.5 min?
________mol
 
(b) How many minutes will it take for the quantity of N2O5 to drop to 0.005 mol?
________mol
 
(c) What is the half-life of N2O5 at 70°C?
________mol
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