Question #ebf63

1 Answer
Dec 5, 2014

If I understood your question, the relationship between #32grams# of #O_2#, Avogadro's number and #1# mole can be described briefly like this:

A very good analogy for the concept of mole is that one can think of a mole as a "chemist's dozen"; instead of going by the number of individual atoms or molecules that form a certain amount of a substance, one would use moles, where

#1# mole has #6.022 * 10^23# atoms

Now, molar mass represents the weight of one mole of a certain element or substance; #1# mole of oxygen weighs approximately #16# grams, which would mean that #1# mole of diatomic oxygen, #O_2#, weighs twice than that, #32# grams.

So, #32grams# of #O_2# represents #1# mole, which in turn represents #6.022 * 10^23# #O_2# molecules.