In a similar experiment to the spectrophotometric analysis of Red 40 food dye, the amount of FD&C Blue 1 food dye in spo

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In A Similar Experiment To The Spectrophotometric Analysis Of Red 40 Food Dye The Amount Of Fd C Blue 1 Food Dye In Spo 1 (60.34 KiB) Viewed 48 times

In a similar experiment to the spectrophotometric analysis of Red 40 food dye, the amount of FD&C Blue 1 food dye in sports drink is determined. A series of known concentrations of Blue 1 solutions are prepared and their absorbances were measured and graphed. The slope of the line was found to be 0.1436 ppm ¹. Calibration Plot of Blue1 Absorbance-Slope x Concentration 0.90 0.75 0.60 20.45 0.30 0.15 0.00 2 3 Concentration of Blue1 Solution (ppm) To determine the concentration of Blue 1 dye in the unknown drink 5.2 mL of unknown drink is placed into a 25.0-mL volumetric flask The absorbance reading of the diluted unknown drink is 0.471 What is the concentration in ppm of Blue 1 dye in the original unknown drink? Enter your numerical answer without units and with three significant figures. Answer: Absorbance