Vitamin K is involved in normal blood clotting. When 1.56 g of vitamin K is dissolved in 25.0 g of camphor, the freezing point of the solution is lowered by 5.23 °C. . Calculate the molar mass of vitamin K.

Answer 1

delta T = Kf*m
Substitute and solve for m = molality.

m = mols solute/kg solvent
Substitute and solve for mols solute

mols = grams/molar mass. You have grams and mols, solve for molar mass.

Answer 2

When i did the problem i got 0.76 but i think its wrong?