A 2154 G Sample of an Unknown Non-Electrolyte Is Dissolved in in 50

question 68

Multiple Choice

A 2.154 g sample of an unknown non-electrolyte is dissolved in 50. g of water (Kf of water = 1.86 °C∙ kg solvent/mol solute) . If the solution freezes at -1.23 °C, the molecular mass of the non-electrolyte is ________.

• A) 33
• B) 65
• C) 130
• D) 260

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