Molecular mass and mole conpect
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it shows the identity of atom
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mole concept
it is not possible to calculate the weight of particles individually, a collection of such particles called mole is taken for all practical purposes. It was discovered that the number of atoms present in 12g of carbon of 12C isotope is 6.023 x 1023 atoms. This is referred to as Avogadro number after the discoverer Avogadro. A mole of a gas is the amount of a substance containing 6.023 x 1023 particles. It is a basic unit of the amount or quantity of a substance. The substance may be atoms, mo
lecules, ions or group of ions.
molecular mass..
The molecular mass of a substance is the relative mass of its molecule as compared with the mass of a 12C atom taken as 12-units. It indicates the number of times; one molecule of the substance is heavier than atom......
it is not possible to calculate the weight of particles individually, a collection of such particles called mole is taken for all practical purposes. It was discovered that the number of atoms present in 12g of carbon of 12C isotope is 6.023 x 1023 atoms. This is referred to as Avogadro number after the discoverer Avogadro. A mole of a gas is the amount of a substance containing 6.023 x 1023 particles. It is a basic unit of the amount or quantity of a substance. The substance may be atoms, mo
lecules, ions or group of ions.
molecular mass..
The molecular mass of a substance is the relative mass of its molecule as compared with the mass of a 12C atom taken as 12-units. It indicates the number of times; one molecule of the substance is heavier than atom......
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