What is avagardo number
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Answer:
The Avogadro number, sometimes denoted N or N₀, is the number of constituent particles that are contained in one mole, the international unit of amount of substance: by definition, exactly 6.02214076×10²³. It is named after the scientist Amedeo Avogadro.
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Answer:
The Avogadro number, sometimes denoted N[1][2] or N0,[3][4] is the number of constituent particles (usually molecules, atoms or ions) that are contained in one mole, the international (SI) unit of amount of substance: by definition, exactly 6.02214076×1023.[5][6] It is named after the scientist Amedeo Avogadro (1776–1856).[7]
The Avogadro constant, usually denoted by NA[6] or L[8] is the factor that, multiplied by the amount of substance in a sample, measured in moles, gives the number of constituent particles in that sample. Its numerical value is the Avogadro number, and its unit is the reciprocal of mole; that is, NA = 6.02214076×1023 mol−1.[9][6][5][10][11]
The value of the Avogadro constant was chosen so that the mass of one mole of a chemical compound, in grams, is numerically equal (for all practical purposes) to the average mass of one molecule of the compound, in atomic mass units (daltons); one dalton being 1/12 of the mass of one carbon-12 atom, which is approximately the mass of one nucleon (proton or neutron). For example, the average mass of one molecule of water is about 18.0153 daltons, and one mole of water (N molecules) is about 18.0153 grams. Thus, the Avogadro constant NA is the proportionality factor that relates the molar mass of a substance to the average mass of one molecule; and the Avogadro number is also the approximate number of nucleons in one gram of ordinary matter.[12]
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