* Question Completion Status! Shown below is a calibration curve for the analysis of theobromine and caffeine in chocholate. if an unknown sample has a caffiene peak height of 3.50 cm what is the concentration of caffeine in the sample in ppm? 20 Peak height (centimeters) 0 0 Theobromine y = 0.1977x-0.2104 Unknown 25 Figure 0-7 Quantate Chemical Analysis Seventh Edition 2007 Freeman and Company Caffeine y=0.088 4x-0.030 3 75 Analyte concentration (parts per million) 50 100 Feb 2 8

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Shown below is a calibration curve for the analysis of theobromine and caffeine in chocholate. if an unknown sample has a caffiene peak height of 3.50 cm what is the
concentration of caffeine in the sample in ppm?
20
Peak height (centimeters)
15
10
5
0
Theobromine
y = 0.1977x-0.2104
25
Unknown
Figure 0-7
Gumantative Chemical Analysis, Seventh Edition
2007 Freeman and Company
Caffeine
y = 0.088 4x-0.030 3
50
Analyte concentration (parts per million)
100
M
ED
Feb 2
8:3
Transcribed Image Text:✓ Question Completion Status: Shown below is a calibration curve for the analysis of theobromine and caffeine in chocholate. if an unknown sample has a caffiene peak height of 3.50 cm what is the concentration of caffeine in the sample in ppm? 20 Peak height (centimeters) 15 10 5 0 Theobromine y = 0.1977x-0.2104 25 Unknown Figure 0-7 Gumantative Chemical Analysis, Seventh Edition 2007 Freeman and Company Caffeine y = 0.088 4x-0.030 3 50 Analyte concentration (parts per million) 100 M ED Feb 2 8:3
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