Question

A solution is made by dissolving 20.0 g C7H6O2 in 800 g C6H6. The freezing point...

A solution is made by dissolving 20.0 g C7H6O2 in 800 g C6H6. The freezing point of the resulting solution is: (Kf(C6H6)=5.10 kg-oC/mol; Tf(C6H6)=5.50oC)

please explain.

answers are

A. 4.46 oC

B. 3.75 oC

C. 5.50 oC

D. 4.22 oC

E. 6.54 oC

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