What is the molality of a solution made from mixing 39 grams of sugar (MM = 180 g/mol) with 310 grams of water?

Name: What is the molality of a solution made from mixing 39 grams of sugar (MM = 180 g/mol) with 310 grams of water?
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Quizplus · Accepted Answer

Molality (m) is calculated by dividing the moles of solute by the kilograms of solvent. Moles of sugar = 39 g / 180 g/mol = 0.2167 mol. Kilograms of water = 310 g / 1000 = 0.31 kg. Molality = 0.2167 mol / 0.31 kg = 0.70 m.

What Is the Molality of a Solution Made from Mixing