. 6. FD&C Dye Practice Parallel Dilution Set. Complete Table 2 below for your group's practice parallel dilution set of

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6 Fd C Dye Practice Parallel Dilution Set Complete Table 2 Below For Your Group S Practice Parallel Dilution Set Of 1 (23.25 KiB) Viewed 81 times

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. 6. FD&C Dye Practice Parallel Dilution Set. Complete Table 2 below for your group's practice parallel dilution set of one FD&C dye, specifying by FD&C color + number which stock dye solution was used. Note that one parallel dilution set member is the undiluted stock solution, hence Vsüllect and Vo must be 0.00 ml for this member. In the space below the table, present in a very organized manner, the concentration calculation for one dilution set member that is not the stock, clearly stating symbolically the equation(s) used and then substituting in actual values. Include correct units throughout. Table 2. Practice Parallel Dilution Set Using FD&C Food Dye Volume of Stock (vs) Volume of Diluent (Vgüvect) Volume of Dilution (Vo) Concentration

7. Proposal 1. Based on your exploration and skill development, propose a plan (procedure) to determine the molar concentration of each FD&C food dye present in your assigned drink. Please NUMBER your procedural steps. Procedural Steps 1) 2) 3) 4)

Table 1. Stock (Reference) FD&C Food Dye Wavelength of Maximal Absorbance (Amex) FD&C Dye (color + number) Loox Observed Color of Stock (Reference) Solution Blue #1 630nm Blue Green #3 625 nm Light Blue Red #3 527 nm Pink Blue #2 610 nm Dark Blue Red #40 507 nm Light red Yellow #6 480 nm Light orange Yellow #5 427 nm Bright Yellow 5. FD&C Food Dyes Present in the Assigned Drink. In complete sentences state the identity of the FD&C food dyes (by FD&C color + number) present in your assigned drink and how you identified the dyes.

Table 1 FD&C Food Dyes Presently in Common Commercial Use FD&C Number Trade Name Molar Mass Red #3 Erythrosine 879.86 g/mol Red #40 Allura Red 496.43 g/mol Yellow #5 Tartrazine 534.37 g/mol Yellow #6 Sunset Yellow 452.38 g/mol Green #3 Fast Green 765.89 g/mol Blue #1 Brilliant Blue 792.86 g/mol Blue #2 Indigotine 466.36 g/mol

Your group was assigned the unknown drink 345 Below is the absorption spectrum they obtained from spectrophotometer. Wavelength of maximal absorbance (Amos) for peak 1: 438 nm Wavelength of maximal absorbance (med) or peak 2: 632 nm Title: Absorption Spectrometer of Unknown Drink J45 1.5 Wavelength 483.0 Absorbance: 0.310 1.0 Absorbance 0.5 0.0 500 700 900 (482.9, 0.305) Wavelength (nm)