Can you explain the difference between molality and molarity?
Answer Meg, Molarity is defined as grams of solute per liter of solution. It is determined by weighing the solute and diluting it to a known volume. Molality is grams of solute per kilogram of solvent. It is determined by weighing the solute, weighing the solvent and then mixing the two. Molality is inherantly more accurate because both the solute and solvent are measured using a balance. Most volumetric measurements are done using a volumetric flask which has an increased possibility of error.
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