Answer to Question #167492 in General Chemistry for Phyroe

Question #167492

Assuming that the following salt solution have effective ion concentration equal to the actual salt concentration determine the approximate freezing point of the solution: 

 A 0.1 F potassium sulfate solution.


1
Expert's answer
2021-03-12T06:29:49-0500

The freezing point depression ∆T = KF·m where KF is the molar freezing point depression constant and m is the molality of the solute. Rearrangement gives: mol solute = (m) x (kg solvent) where kg of solvent is the mass of the solvent (lauric acid) in the mixture. This gives the moles of the solute.


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