Lab Results 9

Lab Results 9 - were any impurities in the alkyl halide...

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Michele Chan Adna Muliawan Chem2211L Lab Results Results: Percentage calculations First Peak or tert -butylchloride: (12.1676/(12.1676+17.9187))x100= 40.4% It occurred at 1.05min with a height of 186.9 Second Peak or tert - butylbromide: (17.9187/(12.1676+17.9187))X100= 59.6% It occurred at 1.59min with a height of 140.1 Discussion The graph showed two major peaks which reflected the nucleophilic chloride and bromide products. There were very slight minor bumps towards the beginning which we thought to have been evidence of air that was trapped in the syringe when we added the alkyl halide layer to the gas chromatograph. The fact that our graph demonstrated a well defined two definite peaks suggests that minimalistic errors if any occurred during the experiment. We don’t think there
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Unformatted text preview: were any impurities in the alkyl halide layers as we were very thorough with extracting the alkyl halide layer. The percent recovery we got for each wasnt very high however we obtained enough of the alkyl halide layer to run through the gas chromatography. Conclusion Based of the percentage of each nucleophilic component, we can conclude that bromide is the stronger nucleophilic as it took longer to transfer into the gas phase so it had a stronger component within the mixture. It means that a bromide ion has a stronger attraction to the positive charge of the tert-butyl carbocation, so it would have a larger percentage of it and take a longer time to convert to the mobile gas phase....
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