Homework Help: chemistry

Posted by Anonymous on Thursday, February 17, 2011 at 7:10pm.

you are conducting a freezing-point determination in the laboratory by using an aqueous solution of KNO3. The observed freezing point of the solution is -1.15 C. Using a pure water sample, you recorded the freezing point of the pure solvent of the same thermometer as .25 C. Determine the molal concentration of KNO3. Assume that there are no forces of attraction between ions

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