Avogadro Constant

Concentration

Empirical formula

Mole

Molecular formula

273 K and 100,000 Pa

Structural formula

The number of carbon atoms in 12 grams of the carbon-12 isotope

The amount of a substance in unit volume of solution

The formula of a compound, showing only the ratio in which the different types of atom are present in a molecule

The amount of substance that contains as many particles as the number of atoms in 12 grams of the carbon-12 isotope

Formula that shows the number of each kind of atom in a molecule

Standard temperature and pressure

A formula showing how atoms are arranged in a molecule