How can u calculate....ITS URGENT!!!?

Question

How can u calculate the Kf ( constant of freezing depression point) for stearic acid... from a lab experiment i did.... if i got the freezing point, delta Tf, grams of the solute, and kg of the solvent which is the acid in this case.... i just need the steps....Thankkss!!

Answer 1

deltaTf = molality x Kf x van't Hoff factor

molality = moles of substance dissolved in the solvent / kg solvent

van't Hoff factor will be 1 for a non-ionizing solute.