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The number of atoms or molecules in one mole of a substance, equal to 6.023 × 10^23 is called avogadro's number.
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Avogadro's number is the number of particles found in one mole of a substance. It is the number of atoms in exactly 12 grams of carbon-12. This experimentally determined value is approximately 6.022 x 1023 particles per mole.
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