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Mole Concept is essential in chemistry and helps students understand various practical and theoretical applications related to this topic. It plays a major role in calculations involving atoms, molecules, and chemical reactions, and is widely used in stoichiometry, chemical equations, and lab experiments. What is Mole Concept in Chemistry? A mole refers to the SI unit for measuring the amount of substance. The mole concept connects the microscopic world of atoms and molecules to the ... As of 2019, the mole is defined more precisely: One mole contains exactly 6.02214076 × 10²³ elementary entities. It is no longer tied to the mass of carbon-12. Know what is mole, simple definition of mole in chemistry, how to calculate number of moles, mass from moles, moles from volume, molar mass Learn what a mole is and how to calculate the number of moles, molar mass, and related quantities of a substance. A mole is the amount of a substance that contains exactly 6.02214076 " 1023 elementary entities.