1. What can you conclude if your dry aspirin sample has a lower melting point than the literature value? The presence of impurities generally decreases the melting point. The lower melting point than literature value indicates that the aspirin sample contains impurities. 2. If the yield of your dry aspirin is greater than 100%, what must you do experimentally to obtain a more reasonable yield? To obtain reasonable yield we can do either recrystallization or column chromatography. By doing the impurities in the sample can be removed, 3. Would the product isolated after Part A. 3 have a higher or lower melting point than that isolated after Part A 5? 4. If the endpoint is surpassed in the analysis of the aspirin sample in Part B. will its percent purity be reported too high or too low? Explain 1

Question-Answer › Category: Chemistry › 1. What can you conclude if your dry aspirin sample has a lower melting point than the literature value? The presence of impurities generally decreases the melting point. The lower melting point than literature value indicates that the aspirin sample contains impurities. 2. If the yield of your dry aspirin is greater than 100%, what must you do experimentally to obtain a more reasonable yield? To obtain reasonable yield we can do either recrystallization or column chromatography. By doing the impurities in the sample can be removed, 3. Would the product isolated after Part A. 3 have a higher or lower melting point than that isolated after Part A 5? 4. If the endpoint is surpassed in the analysis of the aspirin sample in Part B. will its percent purity be reported too high or too low? Explain 1

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Ankit asked 9 months ago

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R K answered 9 months ago

If
we take Station
a polar which binds with
CA
3
ery
phare
polar impurity of sample than
non-polar of less polar
sample / asp has a
lower
Answey 1. If aspisin sample
melting
sample of
the
literature value. This means
than the
the absolute
aspirin cont