hoe many particles are present in 1 mole of a substance
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One mole of a substance is equal to 6.022 × 10²³ units of that substance (such as atoms, molecules, or ions). The number 6.022 × 10²³ is known as Avogadro's number or Avogadro's constant. The concept of the mole can be used to convert between mass and number of particles.. Created by Sal Khan.
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While the mass of 1 mole of a particular substance will vary, 1 mole of ANY substance will ALWAYS have approximately 6.02x10^23 atoms (rounded to 3 significant figures).
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