At a certain temperature this reaction follows first-order kinetics with a rate constant of 0.892s-1:
2CI2O5 (g) → 2CI2 (g) + 5O2 (g)
Suppose a vessel contains CI2O5 at a concentration of 1.02 M. Calculate the concentration of CI2O5 in the vessel 0.760 seconds later. You may no other reaction is important.
Round your answer to 2 significant digits.