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Unformatted text preview: separated out and washed with sodium bicarbonate. Sodium bicarbonate was used to remove the excess H+ ions that were in solution. Since our organic layer was cloudy, we dried it with sodium sulfate before transferring it to a gas chromatography vial. This process absorbs the excess water and untreated alcohols that remain in solution and could skew results of the GC. The use of alcohol in the synthesis of an alkyl halide only applies to a tertiary alcohol, since the teriary carbocation is relatively stable. The reaction of the alcohol and strong acid is a subsititution reaction, in which the hydroxyl leaving group in the alcohol is replaced by the halide anion. This reaction forms the alkyl halide and the byproduct, h2O. Our final yield for 2-pentanol was .93 grams of solution. Post Lab Questions: 1)...
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- Spring '09
- alkyl halide, 1.67mL