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Unformatted text preview: zero with 1) divided by 100. What is the concentration of Red 3 in the unknown solution? Suppose the last two digits of your ID are 52. The measured absorbance is then Abs = 52 / 100 = 0.52 Since the Beers Law slope is 0.066 L/mg, we know that Abs = 0.066 c (where c is in mg/L) or c = Abs / 0.066 Substituting the value of Abs gives us: c = 0.52 / 0.066 = 7.9 mg/L...
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- Spring '09