Question

important formula for mole (class 9)​

Answer 1

So in order to calculate the number of moles of any substance present in the sample, we simply divide the given weight of the substance by its molar mass. Where 'n' is the number of moles, 'm' is the given mass and 'M' is the molar mass.

Answer 2

Answer:

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Explanation:

Number of moles (n) = Given number of particles (N) / Avogadro number (N0)