LEILU.23.27 Eugenia Bueso-Alas: Attempt 2 UUTUUU-Dye SD Incorrectly Low Question 3 (20 points) An unknown food-dye...

Question

Question

Answer 1

Answer #1

Q3. molarity of the diluted unknown = 0.14

Q4. mass of Allura Red present = 6.46

Explanation

Q3. The equation of straight line is : Abs = 4.350x + 0.06

Given : absorbance of diluted unknown = 0.65 = Abs

From the equation of straight line,

x = (Abs - 0.06) / 4.350

x = (0.65 - 0.06) / 4.350

x = (0.59) / 4.350

x = 0.1356

molarity of diluted unknown is : 0.1356 M

Answer 2

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