Five grams of Neswonder coffee was subjected to the extraction procedure for caffeine. The caffeine extracted was made up to 25 mL with using a solvent and scanned with an IR spectrophotometer attaining a response y of 0.65. Based on the calibration curve above, calculate the concentration of caffeine in Neswonder in %.

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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1.8
1.6
1.4
1.2
1
0.8
y = 0.0004x
R? = 0.972
0.6
0.4
0.2
1000
2000
3000
4000
5000
Concentration (mg/L)
2.
Transcribed Image Text:1.8 1.6 1.4 1.2 1 0.8 y = 0.0004x R? = 0.972 0.6 0.4 0.2 1000 2000 3000 4000 5000 Concentration (mg/L) 2.
Five grams of Neswonder coffee was subjected to the extraction procedure for
caffeine. The caffeine extracted was made up to 25 mL with using a solvent
and scanned with an IR spectrophotometer attaining a response y of 0.65.
Based on the calibration curve above, calculate the concentration of caffeine
in Neswonder in %.
Transcribed Image Text:Five grams of Neswonder coffee was subjected to the extraction procedure for caffeine. The caffeine extracted was made up to 25 mL with using a solvent and scanned with an IR spectrophotometer attaining a response y of 0.65. Based on the calibration curve above, calculate the concentration of caffeine in Neswonder in %.
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