Beer's Law Calc

# Beer's Law Calc - 2.2 x 10 4 – 2.7 x 10 4 = -5000 cm-1...

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Beer’s Law Experiment

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Calculations Red Dye #40 Original concentration = 3.989 x 10 -3 M Concentrations: (3.989 x 10 -3 M) x (0.001L) 0.1 L = 3.989 x 10 -5 M (3.989 x 10 -5 M) x (0.001L) 0.5 L = 7.978 x 10 -6 M (7.978 x 10 -8 M) x (0.001L) 1L = 3.989 x 10 -6 M Beer’s Law A= εbc ε=A ε= 0.872 bc (1cm)(3.989 x 10 -5 M) = 2.2 x 10 4 cm -1 M -1 A= εbc ε=A ε= 0.198 bc (1cm)(7.978 x 10 -6 M) = 2.5 x 10 4 cm -1 M -1 A= εbc ε=A ε= 0.104 bc (1cm)(3.989 x 10 -6 M) = 2.6 x 10 4 cm -1 M -1 Deviation (experimental value – theoretical value)
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Unformatted text preview: 2.2 x 10 4 – 2.7 x 10 4 = -5000 cm-1 M-1 = 5000 cm-1 M-1 Relative Deviation 5000 cm-1 M-1 = 0.185 x 100 = 18.52% 2.7 x 10 4 cm-1 M-1 2.5 x 10 4 – 2.7 x 10 4 = -2000 cm-1 M-1 = 2000 cm-1 M-1 Relative Deviation 2000 cm-1 M-1 = 0.074 x 100 = 7.41% 2.7 x 10 4 cm-1 M-1 2.6 x 10 4 – 2.7 x 10 4 = -1000 cm-1 M-1 = 1000 cm-1 M-1 Relative Deviation 1000 cm-1 M-1 = 0.037 x 100 = 3.70% 2.7 x 10 4 cm-1 M-1...
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## This note was uploaded on 09/22/2008 for the course CHEM 104B taught by Professor Staff during the Spring '07 term at Arizona.

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Beer's Law Calc - 2.2 x 10 4 – 2.7 x 10 4 = -5000 cm-1...

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