Nucleophilic Substitution Reactions

Nucleophilic Substitution Reactions - nitrate solution into...

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Nucleophilic Substitution Reactions In this experiment, we compared various alkyl-halides and their reaction times in both silver nitrate/ ethanol and sodium iodide/ acetone solutions. We used 10 ml of already prepared silver nitrate solution but had to prepare our own acetone/ NaI solution. We mixed 21.4 ml of acetone with 3g of NaI to give us a 15% by weight solution. After preparing our solutions and test tubes, we dropped 3 drops of each alkyl-halide into their respective test tubes. We immediately capped the test tubes with foil wrapped cork to prevent any contaminants from entering our test tubes. We then measured the reaction rates after dropping 1ml each of silver
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Unformatted text preview: nitrate solution into each of the 5 test tubes containing the halides and 1 ml of the acetone solution into each of the other 5 halide tubes. The silver nitrate solution enabled us to record the reaction rate of an Sn1 reaction and the acetone gave us the rate of an Sn2 reaction. All of our solutions ended up precipitating but they occurred at different rates. For halides B,C,D, E the Sn1 reaction was fastest and happened instantly or within 1 minute. For halide A, the Sn2 reaction was fastest and happened instantly. The fastest reaction times told us which path the reaction preferred to go....
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This note was uploaded on 08/30/2011 for the course OCHEM 51L taught by Professor Staff during the Winter '10 term at UC Irvine.

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