exp2labreport - Lab #1: Investigating Solubility and...

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Lab #1: Investigating Solubility and Acid-Base Reactions Purpose : We are trying to investigate the solubility of various compounds in polar, nonpolar, acidic, and basic solvents. Part I – Solubility of Hexane, a Non-Polar Solvent Since hexane is a nonpolar hydrocarbon, it only has ID-ID, or London, forces with itself. Since most of the compounds tested had a non-polar portion, they were likely to dissolve at least somewhat in the hexane solvent. (Table 1) Part II – Solubility of Water, Polar Solvent Water’s polar H-O bonds allow it to form hydrogen bonds and give it a strong dipole moment. However, most of the solutes had a large nonpolar section that interfered with its ability to form polar bonds with water. (Table 2) Part III – Water Solubility of Alcohols Solubility was reduced in bigger alcohols because the nonpolar portion grew while the polar O-H bond was overpowered by the D-ID forces caused by the nonpolar portion. The smaller alcohols were more subject to the D-D forces between the O-H bonds in water and alcohol. (Table 3) Part IV – Temperature Dependence of Solubility Solid benzoic acid did not have enough strength in ID-ID to dissolve in water’s D-D forces. However, as temperature increased to 192 C (2M), benzoic acid was completely dissolved
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This note was uploaded on 09/21/2009 for the course CHEM Chemistry taught by Professor Nitche during the Spring '08 term at University of California, Berkeley.

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exp2labreport - Lab #1: Investigating Solubility and...

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