Determine the molality of ions in a solution formed by dissolving 0.187 moles of NaCl in 456 grams of water.The density of the solution is 1.44 g/mL.

Question

Quizplus · Accepted Answer

NaCl dissociates into Na+ and Cl- ions, so 0.187 moles of NaCl produce 0.187 moles of Na+ and 0.187 moles of Cl-, totaling 0.374 moles of ions. Molality (m) = moles of solute/kg of solvent. Thus, 0.374 moles / 0.456 kg = 0.820 m.

Determine the Molality of Ions in a Solution Formed by Dissolving