Written by the Fiveable Content Team • Last updated August 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated August 2025
Definition
Mols (also spelled moles) are units used to measure the amount or quantity of substance. One mol represents Avogadro's number (6.022 × 10^23) particles (atoms, molecules, ions) of a substance.