Does the freezing-point depression ....?

Question

depend only on the number of moles of particles in the solution?

Answer 1

Since freezing point depression is a colligative property, then yes, it depends only on the quantity and mass of particles in solution (that is, molality, which is moles oof solute divided by kilograms of solvent). However, remember that an ionic compound like salt (NaCl) gives two moles of ions per each mole of salt. You must take that into consideration, but technically that still relates to the moles of particles, just that particles here means ions and not just molecules. But something like sugar, which is not ionic, is counted per mole of each sugar molecule.

Answer 2

Delta T= Kf x m x i
Delta T = change in temperature.
Kf = freezing-point depression constant.
m = molality of the solution= moles solute / mass of solvent in Kg .
i = van't Hoff factor. it indicates the number of moles of particles in the solution.

Answer 3

freezing point depression is defined as Tf = imk_f....it aslo depends on the Van't Hoff factor = i(whether its an electrolyte or not), molality which includes moles of solute divided by kg of solvent and the freezing point constant.

Here is a good wesite
http://en.wikipedia.org/wiki/Freezing-point_depression

Answer 4

nope as long as you have the same solution and not a mixed one.