Practice question
Question
What is the molality of a solution containing 16 g of sorbitol (molar mass = 182 g/mol) in 800 g of water?
Explanation
Moles of sorbitol = (16/182) ≈ 0.0879 mol . Mass of solvent = 800 g = 0.8 kg. Molality = (0.0879/0.8) ≈ 0.1099 mol/kg .
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