Is mole short for molecule?
Chemists generally use the mole as the unit for the number of atoms or molecules of a material. One mole (abbreviated mol) is equal to 6.022×1023 molecular entities (Avogadro’s number), and each element has a different molar mass depending on the weight of 6.022×1023 of its atoms (1 mole).
Why do they call it mole?
The mole is a unit used in chemistry that is equal to Avogadro’s number. It is the number of carbon atoms in 12 grams of the isotope carbon-12. The word mole comes from the word molecule. … The mole is most often used to convert between numbers of atoms and molecules to the gram mass unit.
What’s a mole in chemistry?
The mole is defined as the amount of substance that contains as many elementary entities as there are atoms in exactly 12 g of carbon-12.”(
What is the unit of measure called a mole?
The mole, symbol mol, is the SI unit of amount of substance. One mole contains exactly 6.022 140 76 x 1023 elementary entities. This number is the fixed numerical value of the Avogadro constant, NA, when expressed in the unit mol–1 and is called the Avogadro number.
Who gave the term mole?
Wilhelm Ostwald (1853-1932) introduced the “Mol” (mole in German), probably in 1893 . However, he used this term to mean “molecular weight in gram”: “We generally call one mole the weight in grams that is numerically identical with the molecular weight of a given substance” (translated sentence on page 119, ref.
What is a mole in slang?
Moll/Mole/Molly is a slang term with two different meanings in two places: In the United States, an archaic term for a gangster’s girlfriend. See gun moll. In Australia and New Zealand, usually pejorative or self-deprecating, for a woman of loose sexual morals, or a prostitute.
What is a mole in spy?
Mole. An agent of one organization sent to penetrate a specific intelligence agency by gaining employment; a term popularized by John Le Carre.
How is a mole a dozen?
The mole is a unit for counting 6.02 1023 representative particles. The dozen is used to count 12 items. … Each one-mole quantity has 6.02 1023 particles (atoms), but they will have different masses.
What is mole explain with example?
One mole is defined as the amount of substance containing as many elementary entities (atoms, molecules, ions, electrons, radicals, etc.) as there are atoms in 12 grams of carbon – 12(6. 023×1023). The mass of one mole of a substance equals to its relative molecular mass expressed in grams.
What is a mole Class 11?
A mole can be defined as the amount of substance that contains the same number of chemical entities (atoms, ions, molecules, etc.) as there are in 12 g of Carbon-12 isotope, as defined by the General Conference on Weights and Measures.
Are moles dimensionless?
According to the SI, the mole is not dimensionless, but has its very own dimension, namely “amount of substance”, comparable to other dimensions such as mass and luminous intensity. … The SI mole is identical to the gram-mole.
What is mole Mexican?
The term “mole” stems from the Nahuatl world “molli,” which means “sauce” or “concoction.” Mole comes from a family of sauces prepared throughout the Oaxaca and Puebla regions of Mexico and is characterized by a complex, layered flavor derived from intricate blends of dried chiles, spices, fruits, and seasonings.
What is the difference between mole and Mol?
what is Mole or Mol? One mole (also abbreviated as mol) is the amount of substance that contains a specific number of particles ( 6.023 X 1023). These particles may be atoms or molecules or ions etc. Just to simplify, 1 mole of sand means a sand sample where 6.023 X 1023 number of sand particles are there.
Why is mole a practical unit?
The mole is an SI unit that links the microscopic and macroscopic world. It allows scientists to measure large quantities of very small entities, such as atoms or molecules. Initially, units called ‘gram-atom’ and ‘gram-molecule’ were used to specify amounts of chemical elements or compounds.