The Bridge Method can be used to solve many other problem variations. As long as one substance in a balanced equation is expressed in moles, grams, molecules, or atoms, any other substance in the equation can be so converted. The appeal of the method is that every stoichiometry problem is handled the same way.
How many atoms are in a mole?
From moles of a substance, one can also find the number of atoms in a sample and vice versa. The bridge between atoms and moles is Avogadro’s number, 6.022×1023. Avogadro’s number is typically dimensionless, but when it defines the mole, it can be expressed as 6.022×1023 elementary entities/mol.