Understand that chemical amounts are measured using a unit called moles.
Explain that the mass of one mole of a substance in grams is numerically equivalent to its relative formula mass.
Understand that one mole of a substance contains the exact same number of specified particles (atoms, molecules, or ions) as one mole of any other substance.
Define the Avogadro constant as the specific number of atoms, molecules, or ions contained in a single mole of a given substance.
