Mole
1 mole = 6.02 x 10^23; used to count particles of matter indirectly one of these contains Avogadro's number of particles
Avogadro's number
The mole (6.02 x 10^23)
Molar mass
The mass in grans of one mole of any pure substance
Conversion factor
Based on a compound's molar mass used to convert between miles and mass of a compoud
Percent composition
The percent by mass of each element in a compound
Empirical formula
The smallest whole-number mole ratio of elements
Molecular formula
Specifies the actual number of atoms of each element in one molecule or formula unit of the substance
Hydrate
A compound that has a specific number of water molecules bounds to its atoms