Moles to Particles (Avogadro’s Number)

Convert moles of a substance into the actual count of atoms, molecules, or ions using Avogadro’s number.

$$N_p=n\times N_A$$

Variables

Symbol	Meaning	Unit
$N_p$	Number of particles (atoms, molecules, or ions)	particles
n	Amount of substance	mol
$N_A$	Avogadro’s number	particles/mol

Worked example

0.141 mol of chlorine times 6.022 x 10^23 = 8.49 x 10^22 chlorine atoms. 0.217 mol of sodium times 6.022 x 10^23 = 1.31 x 10^23 sodium atoms.

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Part of The Blueprint of Water