The number of atoms of ANY substance in a volume is: # of atoms = N * (density) * volume / (Molecular Weight).

N is a constant called Avogadro’s number and its equal to 6.022*1023 atoms/mole.

It can also be molecules per mole.

## How do you calculate the number of atoms?

Multiply the number of moles in your sample by the atoms per mole, Avogadro’s number. The result is the final answer — the number of atoms in your sample. In the example you calculated .222 moles. Multiply .222 moles by 6.022 x 10^23 atoms per mole to arrive at the answer, 1.34 x 10^23 atoms.

## How do you convert volume to atoms?

Converting from moles to volume (liters): Multiply your mole value by the molar volume constant, 22.4L. Converting from particles (atoms, molecules, or formula units) to moles: Divide your particle value by Avogadro’s number, 6.02×1023.

## How do you find the volume of an element?

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Determining Volume from Density and Mass – YouTube

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## What is the volume of an atom?

Volume of Atoms

Accounting for the sizes of protons, neutrons, and electrons, most of the volume of an atom—greater than 99 percent—is, in fact, empty space.