The word mole was introduced by Wilhelm Ostwald. In Latin, mole means heap or collection or pile.
- A mole is defined as the amount of a substance that contains as many particles (atoms, molecules or ions) of the substance as there are atoms in exactly 12 g of carbon-12.
- The number of particles present in a mole of any substance is fixed, with a value of 6.022 x 10^23. This number is called Avogadro number or Avogadro constant, named in honour of the Italian scientist Amedeo Avogadro. It is represented by N0.
- In other words, a mole of a substance is that amount of the substance that contains 6.022 x 1023particles of the substance.
-Mole is the SI unit of amount of substance.
-The atomic mass of an element expressed in grams is called gram atomic mass of the element.
- The molecular mass of a substance expressed in grams is called gram molecular mass of the substance.
- Gram atomic mass or gram molecular mass also represents molar mass of the substance.
- The mass of 1 mole of a substance is called molar mass of the substance.
1 mole = 6.022 x 1023 particles = Gram atomic mass (or gram molecular mass)
- A mole is defined as the amount of a substance that contains as many particles (atoms, molecules or ions) of the substance as there are atoms in exactly 12 g of carbon-12.
- The number of particles present in a mole of any substance is fixed, with a value of 6.022 x 10^23. This number is called Avogadro number or Avogadro constant, named in honour of the Italian scientist Amedeo Avogadro. It is represented by N0.
- In other words, a mole of a substance is that amount of the substance that contains 6.022 x 1023particles of the substance.
-Mole is the SI unit of amount of substance.
-The atomic mass of an element expressed in grams is called gram atomic mass of the element.
- The molecular mass of a substance expressed in grams is called gram molecular mass of the substance.
- Gram atomic mass or gram molecular mass also represents molar mass of the substance.
- The mass of 1 mole of a substance is called molar mass of the substance.
1 mole = 6.022 x 1023 particles = Gram atomic mass (or gram molecular mass)
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