Problem: For the reaction: 2N2O5 (g) → 4NO2 (g) + O2 (g) the rate constant is k = 2.8×10 −3 sec −1, if the initial concentration of N2O5 is 1.58 mol/L, the concentration of N2O5 after 5 min. is a) 0.27 mol/L b) 1.55 mol/L c) 1.47 mol/L d) 0.68 mol/L e) 0.75 mol/L

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For the reaction:

2N2O5 (g) → 4NO2 (g) + O2 (g)

the rate constant is k = 2.8×10 −3 sec −1, if the initial concentration of N2O5 is 1.58 mol/L, the concentration of N2O5 after 5 min. is

a) 0.27 mol/L

b) 1.55 mol/L

c) 1.47 mol/L

d) 0.68 mol/L

e) 0.75 mol/L