b. What is the freezing point depression when 153 g of bromine is added to 100 g of benzene? Kf of benzene is 5.12 C/m

Answer 1

delta T = Kf*molality
Kf = 5.12
mols Br2 = grams/molar mass = 153/160 = 0.956
molality = mols/kg solvent = 0.956/0.100 = ?
Substitute into delta T = Kf*m and solve for delta T.