how many particles are present in one mole of a substance?
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Answer:
It is equal to 6.022×10²³ mol-1 and is expressed as the symbol NA.
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Explanation:
In chemistry, we use the unit 'mole' to represent the amount of substance containing 6.02 × 1023 particles. The number of particles per mole (6.02 × 1023 mol-1) is determined experimentally and is known as the Avogadro constant or the Avogadro number.
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