![]() Concentration being how much of a substance is in a given volume. Molarity is a unit of concentration, with units of moles of solute/ liters of solvent. So it's more convenient to use moles of atoms instead of saying 6.02214076 x 10^(23) atoms each time we do a calculation. We use such a large number in chemistry because atoms are so small that having even a small amount of atoms like a gram could already be a mole of atoms. So a dozen eggs is 12 eggs, a dozen people is 12 people, a dozen atoms is 12 atoms. In the same way that a dozen of something is 12 particles. It is defined as an Avogadro's number of particles, or 6.02214076 x 10^(23) particles. Molarity and moles are measuring different things and hence have different units.Ī mole is the unit for the amount of substance, or how much of something there is.
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