Chemistry Practice Problems Freezing Point Depression Practice Problems Solution: Determine the freezing point of a solution that co...

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Solution: Determine the freezing point of a solution that contains 78.8 g of naphthalene (C 10H8, molar mass = 128.16 g/mol) dissolved in 722 mL of benzene (d = 0.877 g/mL). Pure benzene has a melting point of 5.50°C and a freezing point depression constant of 4.90°C/m. A) 4.76°C B) 4.17°C C) 0.74°C D) 1.33°C E) 1.68°C

Problem

Determine the freezing point of a solution that contains 78.8 g of naphthalene (C 10H8, molar mass = 128.16 g/mol) dissolved in 722 mL of benzene (d = 0.877 g/mL). Pure benzene has a melting point of 5.50°C and a freezing point depression constant of 4.90°C/m.

A) 4.76°C

B) 4.17°C

C) 0.74°C

D) 1.33°C

E) 1.68°C