Chapter22: Bulk Electrolysis: Electrogravimetry And Coulometry
Section: Chapter Questions
Problem 22.6QAP
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Please help me with the last box form the trail.
Transcribed Image Text:Absorbance
Absorbance
of unknown
substance
Absorbance of solutions
of known concentration
O
Concentration
of unknown
substance
Concentration (mol/L)
Figure 2. A typical Beer's law plot for a dilute solution
Transcribed Image Text:Brand name of soft drink analyzed
pepsi
Concentration of undiluted standard phosphate solution, M 33×/03 M
Solution
Number
%T
Absorbance
1
5%
1.6
2
3%
1.5
3
1%
1. S
4
0.5%
1
Soft drink (dilute)
31%
*Concentration from Beer's law plot. See Figure 2.
0.5/0
*
Phosphate Concentration,
mol/L
6.00 x 10-5
9.00 x 10-5
1.20 x 10-5
1·50×10-5
Color!
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