Question

write about mole concept...​

Answer 1

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✍The amount of substance which contains the same number of particles as a number of carbon atoms present in 12 grams of c12 isotope of carbon.

✍The word mole was introduced by Wilhelm Ostwald.

✍It was introduced in 1896.

✍Mass of one mole of a substance is called its molar mass.

Answer 2

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Mole Concept :

A mole is the amount of substance that contains as many entities (atoms, molecules or other particles) as there are atoms in exactly 12 gram of C-12 isotopes.

Indroduced in 1896.