stoichiometry -- balancing chemical equations using moles from the Chem Collective from Carnegie Mellon University

The following video gives the "big picture" of the mole and its applications.
The big picture of the mole from the Chem Collective from Carnegie Mellon University

Information on how to use the mole in balancing chemical equations is found here:
Stoichiometry: using the mole to balance chemical equations from The Chem Collective from Carnegie Mellon University