how to find the equivalent weight in the reaction

o3=o2?

hey student..
first u need to tell whether you want to find the equivalent weight of o2 or o3..now to find the equivalent weight, just keep in mind the n factor concept
try finding out the change in oxidation number and accordingly calculate the n factor..with n factor in hand, you can easily get the equivalent weigth..
but first verify whether your question is complete or not..