Question

define 1 mole ?????
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Answer 1

One mole is defined as the amount of substance containing as many elementary entities (atoms, molecules, ions, electrons, radicals, etc.) as there are atoms in 12 grams of carbon-12 (6.023 x 1023). The mass of one mole of a substance equals its relative molecular mass expressed in grams.

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Answer 2

we can define it by when the particles combine to give 1 avagdro numbers....