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Molarity Calculator

Molar concentration of a solution

Mass of solute (g)

Molar mass (g/mol)

Solution volume (litres)

Frequently Asked Questions

What is molarity?

Molarity (M) is moles of solute per litre of solution. Moles = mass ÷ molar mass, so molarity = (mass ÷ molar mass) ÷ volume in litres.

Calculate the molarity of a solution from solute mass, molar mass and volume.