Homework Help: CHM

Posted by Adam on Wednesday, October 10, 2012 at 1:58pm.

Some of the cyclohexane solvent vaporized during the temperature versus time measurement. Will this loss of cyclohexane result in its freezing point being recorded as too high, too low or unaffected? Explain.

Please someone explain this to me I don't understand it...Thank you

CHM - DrBob222, Wednesday, October 10, 2012 at 2:17pm
Are you measuring the f.p. of the cyclohexane solvent or the freezing point of the solute? If the solute, what is the solute? Are you using the depression of freezing point method?
CHM - Adam, Wednesday, October 10, 2012 at 2:31pm
freezing point of cyclohexane...yes I am using the depression of freezing point method
CHM - DrBob222, Wednesday, October 10, 2012 at 9:31pm
If there is no solute in the cyclohexane then the amount will not affect the f.p. In other words, the f.p. of cyclohexane is the same whether you've tested 1 mL or 100 mL

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