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Mole concept is an important tool for de...

Mole concept is an important tool for dealing with chemical calculations. The element have atomic mases while compounds have molecular masses or molar masses. Mole is infact, a collection of Avogadro's number `(N_(A))` of the particles of a substance whether element or compound. The value of Avogadro's number is `6.022 xx 10^(23)`
(a) Why is mole commonly called chemist's dozen ?
(b) What is the value associated with the term mole ?

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