Anyone have a GOOD gen chem lab on colligative properties?

Submitted by Cameron Gren / University of North Alabama on Thu, 07/11/2013 - 13:32
We do a freezing point depression experiment (naphthalene in cyclohexane from Beran), but it just doesn't work! We have cu down on the amount of solute, but the students just cannot obtain consistent data! I'm about ready to scrap it, but I would really like them to do SOMETHING with colligative properties in lab. Any suggestions would be most welcome!
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