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Molarity Calculator

Calculate the required mass of a solute to achieve a specific molar concentration.

Required Mass

JavaScript Required

Please enable JavaScript to use the interactive calculator. Alternatively, use the standard formula below:

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Assumptions & Methodology

This calculator uses the standard molarity equation: M = mol / L. It assumes the solute dissolves entirely without significantly changing the total volume (ideal behavior), which is generally acceptable for standard laboratory buffer preparations.