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Unformatted text preview: ANALYSIS OF KOOL-AID PREDICTION: Grape Kool-Aid can be purchased as a powder that you mix with sugar and water or as a pre-made juice box. There are drinkable samples of each of these products labeled A and B. Taste each and 1) comment on which you prefer and why (qualitative observations) and 2) which you think is the pre-made juice. INTRODUCTION: Part A: Sugar Content Dissolved sugar increases the Calories in a beverage, and sugar also increases the density of the solution. In this lab, you will use five solutions that have been prepared with known sugar concentrations: 0% [water], 5% [colored yellow], 10% [colored green], 15% [colored blue], and 20% [colored purple]. You will prepare a plot of density versus sugar content to use to determine the sugar content in the Kool-aid samples. Part B: Food Dye Content Grape Kool-aid contains two standard food dyes: blue 1 and red 40. You will use a spectrophotometer to analyze the samples and measure how much light is absorbed by the solution. The absorbance values will...
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This note was uploaded on 09/22/2010 for the course CHEM 3 taught by Professor Pedersen during the Fall '08 term at Berkeley.
- Fall '08