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Unformatted text preview: f value to this, being .43. Furthermore, in part two the acetaminophen spot moved nearly exactly the same amount as the unknown in both solvents. By simply eyeballing the results of part two, our group was able to determine our unknown to be acetaminophen. I predicted ibuprofen would have the highest R f value, because I assumed it would not be that polar (consisting of mainly c-h bonds). The data makes me think that ibuprofens single o-h bond is enough to create strong intermolecular attractions with the stationary phase, and therefore did not move very far. I then predicted that aspirin would move furthest after ibuprofen, because its shape was not conducive to intermolecular forces. The data mostly supported the hypothesis that aspirin would move the second furthest. I predicted caffeine would move the least, and that was largely the case....
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This note was uploaded on 09/18/2011 for the course CHEM 3AL taught by Professor Li during the Spring '08 term at University of California, Berkeley.
- Spring '08