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The freezing point of an aqueous solution containing 15 g of a nonelectrolyte in 150 mL water is -5.4°C. What is the molecular weight of the compound? Kf = 1.86°C/m for water.
121 g/mol
2.78 g/mol
34.4 g/mol
41.2 g/mol
53.8 g/mol
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