Question

write down the formulas of mole concept .​

Answer 1

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Two Formulae of mole concept (as per the syllabus of class 9) are :-

1.

$no.of \: moles \\ = given \: mass \: \div molar \: mass$

2.

$no .of \: moles \\ = no.of \: particles \div avogadro(s) \: number$

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