Mole (unit)

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Unit seestemSI base unit
Unit oAmoont o substance

The mole is the unit o meisurment in the Internaitional Seestem o Units (SI) for amoont o substance. The unit is defined as the amoont or saumple o a chemical substance that conteens as mony constitutive pairticles, e.g., atoms, molecules, ions, electrons, or photons, as thare are atoms in 12 grams o carbon-12 (12C), the isotope o carbon wi staundart atomic wecht 12 bi definition. This nummer is expressed bi the Avogadro constant, that haes a vailyie o approximately 6.022140857×1023 mol−1. The mole is an SI base unit, wi the unit seembol mol.