Experiment 4 - Vanessa Chew Ashleigh Ward Chem 3AL October...

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Vanessa Chew Ashleigh Ward Chem 3AL October 16, 2010 Experiment 4: Whittling Down the Possibilities Discussion Unknown 1E had no molecular dipole moment, which implied that it had to be hexane, CCl 4 , cyclohexane, heptane, octane or p -xylene. It was also insoluble in water, but this property did not further narrow the list. It was then determined to have a density less than that of water, eliminating CCl 4 . Finally, its boiling point was determined to be 140 ºC, which confirmed that this unknown was p -xylene. Unknown 2E had a molecular dipole moment, eliminating approximately half the list of compounds. It was also soluble in water. With these two properties, the list was narrowed to acetone, MeOH, EtOH and PrOH. The boiling point was then determined to be 55 ºC, implying that the unknown compound was acetone. Unknown 3E had a molecular dipole moment, which eliminating half the possibilities as mentioned above. However, it was not soluble in water, which left DCM, EtOAc, 1,2- dichloroethane,
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Experiment 4 - Vanessa Chew Ashleigh Ward Chem 3AL October...

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