ⴰⵎⵓⵍ (ⵜⴰⵢⵓⵏⵜ)
ⴰⵎⵓⵍ (ⵉⵏⵉⴳⵍ : mol) ⴷ ⵢⴰⵜ ⵙⴳ ⵜⵢⵓⵡⵏⵉⵏ ⵜⵉⵙⵉⵍⴰⵏⵉⵏ ⵏ ⵓⵏⴳⵔⴰⵡ ⴰⴳⵔⴰⵖⵍⴰⵏ, ⵉⵜⵜⵡⴰⵙⴰⵢ ⴳ ⵓⵙⴳⴳⴰⵙ ⵏ 1971, ⴰⵔ ⵡⴰⵍⴰ ⵉⵜⵜⵡⴰⵙⵎⵔⴰⵙ ⴳ ⵜⴼⵉⵣⵉⵜ ⴷ ⵜⴽⵔⵓⵔⴰ. ⴰⵎⵓⵍ ⴷ ⵜⴰⵙⵎⴽⵜⴰ ⵏ ⵜⵎⵜⵜⴰ ⵏ ⵢⴰ ⵓⵏⴳⵔⴰⵡ ⵢⵓⵎⵉⵏ 6,022140 76× 1^23 ⵏ ⵓⴼⵔⴷⵉⵙ.ⴰⵎⴹⴰ-ⴰⴷ ⵉⵙⵎ ⵏⵏⵙ ⴰⵎⴹⴰⵏ ⵏ ⴰⴱⵓⴳⴰⴷⵓ (ⵏⵖ ⵉⵎⵣⴳⵉ ⵏ ⴰⴱⵓⴳⴰⴷⵓ), ⵉⵏⵉⴳⵍ NA ⵜⴰⵙⴽⵜⴰ ⵏⵏⵙ ⴷ ⵓⴹⵔⵉⵏ ⵏ ⵢⴰⵏ ⵓⵎⵓⵍ (mol^−1).
