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Unformatted text preview: . Solid B Liquid A + Dissolved B Remember, solid only needs to be heated enough to reach vapor pressure equal to liquid's vapor pressure. SO . . . As more contaminant dissolves in liquid, vapor pressure of liquid decreases, and amount of heat required to melt solid decreases. Mel5ng Point Composi5on Diagram How Can We Use Mel5ng Point? Iden5fica5on: Mel5ng point can help us to iden5fy a compound Do ALL compounds have completely different mel5ng points? Ex: o-anisic acid (98 - 100 C) vs 4-tert-butylphenol (98 - 101 C) How can we tell them apart (using only mel5ng point)? Mixed Mel5ng Point and Iden5fi...
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This note was uploaded on 11/23/2010 for the course CHEMISTRY Chem 51 LA taught by Professor Dr.reneelink during the Spring '10 term at UC Irvine.
- Spring '10
- Organic chemistry