# Problem: The half-life of N2O5 (g) at a 25 °C is 4.03 x 104 s. The rate constant is 1.72 x 10-5 s-1b) Determine the fraction of N2O5 molecules that remain unreacted after 24h.

###### FREE Expert Solution

We are asked to determine the fraction of N2Omolecules that remain unreacted after 24h

The integrated rate law for a first-order reaction is as follows:

where:

[A]t = concentration at time t

k = rate constant

t = time, [A]0 = initial concentration

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###### Problem Details

The half-life of N2O5 (g) at a 25 °C is 4.03 x 10s.

The rate constant is 1.72 x 10-5 s-1

b) Determine the fraction of N2Omolecules that remain unreacted after 24h.