Dear Student
1. MOLE is the quantity of a substance that gas sane number of atoms present in 12g of C-12 isotope.
MOLECULE is a chemical species that is formed due to combination of several atoms through chemical bonding.
2. Mole is used to measure quantity of a substance. Molecule is a combination of several atoms.
3. Mole is expressed as mol. Number of molecules can be measured as number of mole's present.
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