A mole is a unit used in chemistry that represents 6.022 x 10^23 particles (atoms or molecules) - this is known as Avogadro's Number.
The mass (in grams) per mole of a substance.
Avogadro’s Number: The number representing one mole which equals 6.022 x 10^23 particles.
The calculation involving relationships between reactants and/or products in a chemical reaction based on their quantities.