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Molality Calculator
Calculate the molality (m) of a solution
Formula: m = moles of solute / mass of solvent (kg)
Molality is defined as the number of moles of solute dissolved in exactly 1 kilogram of solvent.
Molality is defined as the number of moles of solute dissolved in exactly 1 kilogram of solvent.
Solution Parameters
Calculation Results
⚠️ Unlike molarity (M), molality (m) is independent of temperature because mass does not change with thermal expansion or contraction. This makes molality ideal for precise colligative property measurements (like boiling point elevation and freezing point depression).