The value which must be used to find the number of molecules in the given sample of her compound is; Avogadro's number.
Avogadro's number and the Number molecules
The Avogadro's constant, otherwise known as the Avogadro's number is the proportionality constant that relates the number of constituent particles in a sample with the amount of substance in the sample in discuss.
Its SI unit is the reciprocal of mole, and it is estimated exactly as Na = 6.02214076×10²³ mol⁻¹.
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