Pure benzene freezes at 5.45°C. A solution containing 724g of C2Cl4H4 in 115.3 g

Question

of benzene was observed to freeze at 3.55°C. From these data, calculate the molal
freezing point depression constant of benzene.

Answer 1

Perhaps no one has answered because C2Cl4H4 does not exist. Check it out. That would mean C has 5 bonds and that's a no no.