Chemistry
Number of Particles
Calculate particles from the number of moles.
N = n × Nₐ
Formula Explanation
The number of entities equals moles multiplied by Avogadro constant.
Variables Explained
N = Number of entities; n = Moles; Nₐ ≈ 6.022 × 10²³ mol⁻¹.
Solved Example
How many molecules are in 2 mol of a substance?
N = 2 × 6.022 × 10²³ = 1.2044 × 10²⁴ molecules.