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Briefly discuss why increased chlorination of organic compounds increases the recalcitrance or stability of the molecule in the environment.
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- What is meant by recalcitrance,give an example and briefly discuss why increased chlorination of organic compounds increases the recalcitrance or stability of the molecule in the environment.Based on the color of the pigments on the chromatography paper, explain which wavelengths of lights are absorbed and reflected by chlorophyll a, chlorophyll b, xanthophyll, and beta caroteneName the three different stages in which shape selectivity can take place in zeolite used as a catalyst for reactions with hydrocarbons
- briefly explain the principle behind this technique; affinity chromatography using a diagram to illustrate.In relation to UV spectroscopy, why do these two reactions occur simultaneously?True or false photochemicals in food are hypothesized to act as the primary source of antioxidants in the human body
- Which of the following reagents can be used in the reaction in the photo? A.) pyridinium chlorochromate B.) potassium permanganate C.) sodium dichromate with sulfuric acid D.) potassium chromate with sulfuric acidWhy is picric acid used for burns? Explain the principle involvedName at least two alternative chemical tests that can be performed to characterize functional groups/hydrocarbons in an unknown sample (aside from Nitration test, Bromine test, and basic oxidation reaction test.)
- Explain how acetaminopen gives such spectroscopic and chromatographic graph by interpreting the peaks that appeared in the graphs. Fig1. Mass Spectrometric Chromatogram of Acetaminophen (the two graphs) Fig2. IR Spectrograph of AcetaminophenIf the dehydration reaction of an alcohol is successful, what changes would be seen in the IR spectrum for the product compared to the starting materialThe two most abundant pigments in the chromatography results were carotene and Xanthophyll. What colors are absorbed or reflected by various pigments and how much is there?