MadSci Network: Chemistry |
Yes. The formula is: Delta Tf = i Kf m where: Delta Tf = change in freezing point for the solvent in the solution i = Van't Hoff factor (which will be 1 if the solute is a non-electrolyte) Kf = Freezing Point Depression Constant m = concentration in moles of solute per kilogram of solvent assuming that putting quotes around the word solute doesn't make it mean something else. What do I mean? If something is soluble, then it is a solute. If something isn't soluble, then it's not a solute. A dispersion of something insoluble (e.g. vegetable oil in water, or water in mercury) doesn't act the same way because it's not a solution. Soluble oils used in anti-rust additives are called that because they are soluble at the levels used in the formulation.
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