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# Avogadro's Number Calculator

Put the values of volume, density, atomic mass, and no. of atoms in Avogadro’s number calculator to calculate no. of units in one mole of a substance.

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## Avogadro's Number Calculator

Avogadro number calculator computes how many units of something are present in one mole of that substance.

It uses the basic formula to calculate the result. The equation includes volume, density, atomic mass of the substance, and atomic number (**Z**).

## What is Avogadro’s number?

Avogadro’s number is defined as the number of elementary particles (molecules, atoms, compounds, etc.) per mole of a substance.

Its value is **6.022 x 10 ^{23}** units in each mole. Its symbol is

*N*_{A.}- One mole of water has Avogadro’s number of molecules.
- One mole of atomic oxygen has
**6.022 x 10**oxygen atoms.^{23} - One mole of
**CO**contains Avogadro’s number of carbon atoms._{2}

## Avogadro number unit

Avogadro number is a fixed amount of units in a mole. The unit of Avogadro’s number can be found through the following formula:

*No. of atoms = Avogadro’s number × moles*

*Avogadro’s number **=no. of atoms/moles*

As the number of atoms has no unit:

*Unit of Avogadro’s number** **= **1/mol**= **mol*^{-1}