What is the purpose of the mole in chemistry?

1 Answer
Nov 28, 2015

Answer:

The mole is simply another counting unit; just as 10, or 12, or 100 are.

Explanation:

You know I think the relationship between the mole and Avogadro's number, #6.022# #xx# #10^23#. If I have Avogadro's number (#=N_A#) of carbon atoms, then I have a mass of #12.011# #g# of carbon (it is not quite a whole number because there are different isotopes of carbon).

So if I burn some carbon, say 12.0 g or 1 mole, then how many oxygen atoms will I need for the process? And what is the mass of this quantity, this number of oxygen atoms?

#C(s) + O_2(g) rarr CO_2(g)#