Chemistry Practice Problems Freezing Point Depression Practice Problems Solution: The normal freezing point of benzene (C6H6) is 5.4...

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Solution: The normal freezing point of benzene (C6H6) is 5.48°C. The normal freezing point of a solution prepared by dissolving 2.00 g of a covalent compound in 100.0 g of benzene is 5.08°C. What is the molar mass of the compound? For benzene, Kf = 5.12°C/m. a) 250 g/mol b) 26 g/mol c) 130 g/mol d) 2600 g/mol

Problem

The normal freezing point of benzene (C6H6) is 5.48°C. The normal freezing point of a solution prepared by dissolving 2.00 g of a covalent compound in 100.0 g of benzene is 5.08°C. What is the molar mass of the compound? For benzene, Kf = 5.12°C/m. 

a) 250 g/mol 

b) 26 g/mol 

c) 130 g/mol 

d) 2600 g/mol

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