delta T = Kf*molality
delta T = 64.10-63.50 = ?
You know delta T and Kf, solve for m.
m = mols/kg solvent
You know m and kg chloroform, solve for mols.
mols = grams/molar mass.
You know mols and grams, solve for molar mass
A solution is prepared by combining 3.72 grams of an unknown non-electrolyte with 325.0 grams of chloroform. The freezing point of the mixture is -64.10 oC, while the freezing point of pure chloroform is -63.50oC. The kf of pure chloroform is 4.68 oC/molal.
Based on this information, the molality of the solution is?
The number of moles of non-electrolyte present in the solution is?
Thus, the molar mass of the non-electrolyte is?
1 answer
1 answer