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Calculated result
Formula and method
Molality = moles of solute ÷ kilograms of solvent. Grams of solvent are converted to kilograms before calculation.
Worked example
0.5 mol divided by 2 kg solvent equals 0.25 mol/kg.
Important boundary
Molality uses solvent mass. It is not molarity, which uses liters of final solution.
Common mistake
Use compatible dimensions and distinguish the quantity being solved from the quantities entered. The calculator normalizes supported units before arithmetic and rejects zero, negative, malformed, or unbounded values.
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