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Mole (unit) - Wikipedia The mole (symbol mol) is a unit of measurement, the base unit in the International System of Units (SI) for amount of substance, an SI base quantity proportional to the number of elementary entities of a substance One mole is an aggregate of exactly 6 022 140 76 × 10 23 elementary entities (approximately 602 sextillion or 602 billion times a trillion), which can be atoms, molecules, ions
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Mole | Definition, Number, Facts | Britannica Mole, standard unit (6 02214076 x 10^23) in chemistry for measuring large quantities of very small entities such as atoms, molecules, or other specified particles The number of units in a mole also bears the name Avogadro’s number, or Avogadro’s constant, in honor of the Italian physicist Amedeo Avogadro
- mole - BIPM SI base unit: mole (mol) The mole, symbol mol, is the SI unit of amount of substance One mole contains exactly 6 022 140 76 x 10 23 elementary entities This number is the fixed numerical value of the Avogadro constant, N A, when expressed in the unit mol –1 and is called the Avogadro number The amount of substance, symbol n, of a system is a measure of the number of specified elementary
IUPAC - mole (M03980) The IUPAC Compendium of Chemical Terminology The mole, symbol mol, is the SI unit of @A00297@ One mole contains exactly \(6 022\ 140\ 76 \times 10^{23}\) elementary entities
10: The Mole - Chemistry LibreTexts No headers The mole is the unit of measurement in the International System of Units (SI) for amount of substance It is defined as the amount of a chemical substance that contains as many elementary entities (e g , atoms, molecules, ions, electrons, or photons)
Mole (Mol) Definition in Chemistry - ThoughtCo Examples: 1 mole of NH 3 has 6 022 x 10 23 molecules and weighs about 17 grams (Nitrogen's molecular weight is 14 and Hydrogen is 1, 14 + 3 = 17) ; 1 mole of copper has 6 022 x 10 23 atoms and weighs about 63 54 grams