A 596-G Sample of a Compound Is Dissolved in 222

question 79

Multiple Choice

A 5.96-g sample of a compound is dissolved in 222.0 g of benzene. The freezing point of this solution is 1.06°C below that of pure benzene. What is the molar mass of this compound? (Note: K_f for benzene = 5.12°C/m.)

• A) 1.30  10² g/mol
• B) 2.85  10¹ g/mol
• C) 1.80  10² g/mol
• D) 6.39  10³ g/mol
• E) 5.56  10² g/mol

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