Given the following first order reaction: 2H2O2( g )2H2O( g ) + O2( g ) Determine the concentration of H2O2after 8.0 hours if the initial...

Given the following first order reaction:

2H2O2(g) ↔ 2H2O(g) + O2(g) 

Determine the concentration of H2O2 after 8.0 hours if the initial concentration is 1.0 M and the rate constant at 20 ∘C is 1.8 x 10-5 s-1. 

0.52 M

1.0 M

0.60 M

0.48 M