11 Facts About Avogadro constant

Avogadro constant is the proportionality factor that relates the number of constituent particles in a sample with the amount of substance in that sample.

Numeric value of the Avogadro constant expressed in reciprocal mole, a dimensionless number, is called the Avogadro number.

In older literature, the Avogadro constant number is denoted N or N0, which is the number of particles that are contained in one mole, exactly 6.

Value of the Avogadro constant was chosen so that the mass of one mole of a chemical compound, in grams, is numerically equal to the average mass of one molecule of the compound in daltons ; one dalton being.

Avogadro constant relates the molar volume of a substance to the average volume nominally occupied by one of its particles, when both are expressed in the same units of volume.

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Avogadro constant is named after the Italian scientist Amedeo Avogadro, who, in 1811, first proposed that the volume of a gas is proportional to the number of atoms or molecules regardless of the nature of the gas.

Name Avogadro constant's number was coined in 1909 by the physicist Jean Perrin, who defined it as the number of molecules in exactly 16 grams of oxygen.

Value of Avogadro constant's number was first obtained indirectly by Josef Loschmidt in 1865, by estimating the number of particles in a given volume of gas.

Avogadro constant was awarded the 1926 Nobel Prize in Physics, largely for this work.

Electric charge per mole of electrons is a Avogadro constant called the Faraday Avogadro constant and has been known since 1834, when Michael Faraday published his works on electrolysis.

Avogadro constant NA is related to other physical constants and properties.