Chemistry
Basic

Molarity

Concentration in moles of solute per litre of solution.

Formula

M=nVM = \frac{n}{V}

Variables

nMoles of solute
VLitres of solution

Example

Dissolving 0.5 mol of salt in 2 L of water gives M = 0.5/2 = 0.25 mol/L.

Did You Know?

Molarity counts particles, not weight — one liter of 1 M solution holds 6×10²³ dissolved units.

concentrationsolutionmolarity