Chemistry Lab 2 - Kyle Brush Heather Rankin Section 006 Partner Orlando Spectrophotometric Determination of Multi-Component Systems Research question

Chemistry Lab 2 - Kyle Brush Heather Rankin Section 006...

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Kyle Brush Heather Rankin Section 006 Partner: Orlando Spectrophotometric Determination of Multi-Component Systems Research question: Ignoring interference the identity and concentrations in the dye I was assigned was 414 nm. We choose unknown number 1. This certain mixture had a concentration of 0.147 of yellow 6, and 0.185 of red 3. Both these concentrations were taken with a wavelength of 526.6 Observations and results: Sample λmax (nm) FD&C yellow 6 407 FD&C red 3 407 FD&C red 40 407 FD&C blue 1 407 Table 1
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Sample absorbance max at yellow 6 absorbance max @ red 3 FD&C yellow 6 0.481 0.209 FD&C red 3 0.151 0.533 Table 2 Sample absorbance max % by mass in powerade mass per serving FD&C red 40 0.272 .08 g .32 g FD&C blue 1 0.34 .08 g .32 g Table 3 Calculations: Claims: We were assigned grape flavored Powerade that contained both red 40 and blue 1. The unknown
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  • Fall '11
  • HeatherRankin
  • Chemistry, pH, Food coloring, E number, Food colorings, Heather Rankin

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