Question

what is the defination of mole concept???

Answer 1

Mole (unit) ... The unit is defined as the amount or sample of a chemical substance that contains as many constitutive particles, e.g., atoms, molecules, ions, electrons, or photons, as there are atoms in 12 grams of carbon-12 (12C), the isotope of carbon with standard atomic weight 12 by definition.

Answer 2

the S.I Unit of amount of substance equal to the quantity containing as many elementary units as there are atoms in 0.012kg of 12c
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