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Molarity Calculator

Calculate molar concentration of solutions

⚗️Molarity Calculator

Molarity (M) is the concentration of a solution, defined as the number of moles of solute dissolved per litre of solution. It is the most commonly used unit of concentration in chemistry.

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Tip: Always add concentrated acid to water — never the reverse — to avoid dangerous exothermic splashing.

Fun Fact

The term "molar" derives from the Latin moles, meaning "heap" or "mass." Avogadro's number (6.022×10²³) defines how many particles are in one mole.

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