13) ** Determine the freezing point of a solution that contains 78.8 g of naphthalene (C10H8, molar mass = 128. 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 %3D B) 1.33°C C) 1.68°C D) 0.74°C E) 4.17°C

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D) 1.32 m
E) 3.29 x 10-1 m
4
13)** Determine the freezing point of a solution that contains 78.8 g of naphthalene (C10H8, molar mass = 128.
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
%3D
B) 1.33°C
C) 1.68°C
D) 0.74°C
E) 4.17°C
14) ** Which of the following will have the lowest freezing point when dissolved in water?
Transcribed Image Text:D) 1.32 m E) 3.29 x 10-1 m 4 13)** Determine the freezing point of a solution that contains 78.8 g of naphthalene (C10H8, molar mass = 128. 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 %3D B) 1.33°C C) 1.68°C D) 0.74°C E) 4.17°C 14) ** Which of the following will have the lowest freezing point when dissolved in water?
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