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What is the concept of a mole?

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quantitative chemistry:mole and Avogadro. The Mole Concept (Avogadro's Number) Molecules and atoms are extremely small objects - both in size and mass. ... This standard is the "mole". The mole is based upon the carbon-12 isotope. read more

Visualizing a mole as a pile of particles, however, is just one way to understand this concept. A sample of a substance has a mass, volume (generally used with gases), and number of particles that is proportional to the chemical amount (measured in moles) of the sample. read more

Like all units, a mole has to be based on something reproducible. A mole is the quantity of anything that has the same number of particles found in 12.000 grams of carbon-12. read more

The number of moles of a sample is the sample mass divided by the molar mass of the material. History. The history of the mole is intertwined with that of molecular mass, atomic mass unit, Avogadro's number and related concepts. read more

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