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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