P2 S2 Prep Work Done.docx - Chemical Thinking P2 S2...

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Chemical ThinkingP2S2Preparatory Work v1.4 |1Project 2Session2Preparatory WorkWrite an initial experimental plan to identify the FD&C food dye(s) present in your assigned commercial candysample. There are several points you should consider in your experimental design. First, the spectrophotometers inlab produce absorption spectra (Avs.λplots) for a substance in solution in one straightforward reading. Second,such absorption spectra (Avs.λplots) typically have a wavelength of maximal absorption (λmax), which is considereda differentiating characteristic for the substance. This meansλmaxcan, in theory, be used to identify substances. Inlab, you will have access to stock solutions of all seven FD&C food dyes. Your task is to devise an experimentalstrategy and write out a procedure, in outline form, that identifies which FD&C food dye(s) are responsible forimparting color to the candy your group has been assigned to.
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Term
Fall
Professor
Dr.VanDorn
Tags
Chemistry, Analytical Chemistry, Dye, Absorption spectroscopy

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