Mole

The mole (mol) is the unit of matter and is proportional to the number of elementary entities in this matter. The name is derived from the Latin word moles, meaning "amount".

The mole is defined as 6.022,140,76×10²³ elementary entities of the matter. This is known as Avogadro's constant N_A, named after the Italian physicist and chemist Lorenzo Romano Amedeo Carlo Avogadro count of Quaregna and Cerreto (1776 – 1811).

Related concepts

• base units
• mass
• matter
• volume