Just as the depletion of stratospheric ozone threatens life on Earth today, its accumulation was one of the crucial processes that allowed life to develop in prehistoric times:
3O2(g) → 2O3(g)
At a given instant, the reaction rate in terms of [O2] is 2.17 x 10^-5 mol/L.s. What is it in terms of [O3]? Enter your answer in scientific notation.