Molarity Calculator

The molar concentration of a solution: moles of solute per litre.

Result

Molarity (mol/L)

0.2500

How it works

Molarity = moles ÷ volume (L)

Molarity (M) is moles of solute divided by the volume of solution in litres. It is the most common way to express concentration in chemistry.

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Frequently asked questions

What does 1 M mean?

One mole of solute dissolved in one litre of solution.

Molarity vs molality?

Molarity uses litres of solution; molality uses kilograms of solvent and is temperature-independent.

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