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The following calibration curve was produced for Red 4 0 . The slope was calculated to be 2 . 1 0 3 3 1 0

The following calibration curve was produced for Red 40. The slope was calculated to be 2.1033104. The
4a. A sample of powered drink mix with a mass of 0.2006 grams is dissolved in water to make 250.00mL of solution. A sample of this solution is placed in the spectrophotometer and its absorbance is measured as 0.2996. Based on the calibration curve above, calculate the molarity of Red 40 in the unknown.
b. How many grams of Red 40 are in the drink mix solution?
c. What is the % by mass of Red 40 in the drink mix powder?
5. A sample of powdered drink mix with a mass of 12.22g is dissolved in water to make 250.00mL of solution. 50.00mL of the resulting solution is transferred to a new container and diluted to a total volume of 250.00mL. How many grams of the drink mix powder are in the second solution? (hint: there is a very simple relationship between the concentrations of these two solutions... this is a basic one-step calculation!)
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