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- Dictionarymole/mōl/
noun
- 1. a small burrowing insectivorous mammal with dark velvety fur, a long muzzle, and very small eyes. Similar
- 2. a spy who achieves over a long period an important position within the security defenses of a country: "a well-placed mole was feeding them the names of operatives" Similar
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Jun 5, 2024 · mole, in chemistry, a standard scientific unit for measuring large quantities of very small entities such as atoms, molecules, or other specified particles. The mole designates an extremely large number of units, 6.02214076 × 10 23.
1. : any of numerous burrowing insectivores (especially family Talpidae) with tiny eyes, concealed ears, and soft fur. 2. : one who works in the dark. 3. : a machine for tunneling. 4. : a spy (such as a double agent) who establishes a cover long before beginning espionage. broadly : one within an organization who passes on information. mole. 3 of 6
Jun 25, 2014 · The mole is the S unit for quantity that is exactly 6.022 x 10^23 particles. In chemistry, a mole is an SI base unit for quantity. Despite the name, it has nothing to do with the small brown/gray garden pest or the tasty chocolate sauce on Mexican food. The mole unit describes the amount or number of things.
In the field of chemistry, a mole is defined as the amount of a substance that contains exactly 6.02214076 * 10 23 ‘elementary entities’ of the given substance. The number 6.02214076*10 23 is popularly known as the Avogadro constant and is often denoted by the symbol ‘N A ’.
a person who works for an organization or government and secretly gives information to its competitor or enemy: A mole inside the Department had leaked secret proposals to the press.
Sep 21, 2022 · 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).
Jul 3, 2019 · A Mole is defined as a chemical unit, defined to be 6.022 x 10 23 (Avogadro's Constant) entities. In science, this is usually molecules or atoms. The mass of a mole is the gram formula mass of a substance.
Mole definition: any of various small insectivorous mammals, especially of the family Talpidae, living chiefly underground, and having velvety fur, very small eyes, and strong forefeet. See examples of MOLE used in a sentence.
One mole of a substance is equal to 6.022 × 10²³ units of that substance (such as atoms, molecules, or ions). The number 6.022 × 10²³ is known as Avogadro's number or Avogadro's constant. The concept of the mole can be used to convert between mass and number of particles.. Created by Sal Khan.
a person who works for an organization or government and secretly gives information to its competitor or enemy: A mole inside the Department had leaked secret proposals to the press.
