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Define the avogadro's number :...

Define the avogadro's number :

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Avogadro number is the number of atoms present in one mole of an element or number of molecules present in one mole of a compound. The value of Avogadro number (N) = `6.023xx10^(23) `.
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Why is the value of Avogadro's number 6.022xx10 ^(23) and not any other value ?

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