Potassium fluoride is extremely soluble in glacial acetic acid as well as the solutions have a number of unusual properties. In an attempt to understand them, freezing point depression were obtained by taking a solution of known molality and then diluting it several times
b/(mol/kg) -- delta T/K
0.015 -- 0.115
0.037 -- 0.295
0.077 -- 0.470
0.295 -- 1.381
0.602 -- 2.67
Compute the apparent molar mass of the solute as well as suggest an interpretation
Use delta H fusion = 11.4kJ/mol and T*f = 290K