How many moles are there in a certain mass of a substance?

ADVERTISEMENTS:

Number of moles of substance in a certain mass of a substance may be obtained as follows. Let,

Mass of the substance = Wg

Molar mass of the substance = Mg/mol

ADVERTISEMENTS:

Then,

No. of moles of the substances= Wg / Mg/mol =W / M mol

Or the No. of moles of a substance= Mass of the substances in grams / Molar mass of the substance in grams person mole

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