**Simple calculator to estimate Avagadro’s constant of a substance. It expresses the number of elementary entities per mole of substance and it has the value 6.0221(30)+10^^{23} mol-1.**

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### Calculator of Avogadro’s Number

### Formula of Avogadro’s Number

**N = (Z x M) / (D x V) **

**Where, **

- Z=Number of atoms within the crystal unit cell,
- M=Average atomic mass,
- D=Density, V=Volume.

** Amadeo Avagadro** proposed, in 1811, that equal volumes of gas contains an equal number of atoms or molecules, if the two volumes are held at the same temperature and pressure. This proposal became the Avagadro’s Hypothesis

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