Just as the depletion of stratospheric ozone today threatens life on Earth today, its accumulation was one of the crucial processes that allowed life to develop in prehistoric times.

3 O2 (g) ---> 2 O3 (g)

a. Express the rate of reaction in terms of the rate of disappearance of O2 and the rate of appearance of O3.
b. At a given instant, the rate of disappearance of O2 is 1.61 x10^-5 mol/Ls. What is the rate of appearance of O3?

The rate of reaction :

is the rate of appearance of an ozone.

Explanation:

The rate of the reaction is defined as change in in the concentration of any one of the reactants or products per unit time.

a) Rate of the reaction = R

Rate of the disappearance of the oxygen gas:

Rate of the appearance of the ozone gas:

b)Rate of the disappearance of the oxygen gas:

Rate of the appearance of the ozone gas:

is the rate of appearance of an ozone.

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error