Allura red dye molarity: 3.199E-4 2. Calculate the amount (in mg) of Allura Red

Question

Allura red dye molarity: 3.199E-4 2. Calculate the amount (in mg) of Allura Red Dye that a consumer would obtain from an 8-ounce serving of the drink that you studied. The molar mass of Allura Red Dye is 496.42 g/mol. In one U.S. fluid ounce, there are 29.6 mL 3. The FDA's acceptable daily intake for Allura Red Dye is 7.0 mg/kg bodyweight per day Calculate how many servings a 200-lb person may have per day (or if you would like to, calculate how many servings you may have per day). In 1 kg, there are 2.20 lbs How many servings can a 5-year-old child, weighing 55-lb, drink in a day to remain below an acceptable daily intake of 7.0 mg/kg bodyweight? 4.

Explanation / Answer

Q2

Molarity = 3.199*10^-4 M

V = 29.6 mL

mol = MV = ( 3.199*10^-4)(29.6*10^-3) = 0.000009469

mass = mol*MW = 0.000009469*496.42 = 0.0047 g = 4.7 mg of red dye

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