Calculate the molality of a solution containing 14.3 g of NaCl in 42.2 g of water. A)2.45 × 10^-4 m B)5.80 × 10^-4 m C)2.45 × 10^-1 m D)103 m E)5.80 m

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Quizplus · Accepted Answer

Molality (m) is calculated as moles of solute per kilogram of solvent. First, calculate moles of NaCl: 14.3 g / 58.44 g/mol = 0.2447 mol. Then, convert 42.2 g of water to kg: 42.2 g = 0.0422 kg. Finally, molality = 0.2447 mol / 0.0422 kg = 5.80 m.

Calculate the Molality of a Solution Containing 14