The following volumes of a solution containing 1.10 ppm of Zn were pipetted into separatory funnels each containing 5.00 ml of an unknown zin c solution: 0.00, 1.00, 4.00, 8.00 and 12.00. Each was extracted with three 5-ml aliquots of CC, containing an excess of 8-hydroxyquinoline. The extracts were then diluted to 25.0 ml and their fluorescence measured with a fluorometer. Plot the data and calculate the concentration of zinc in the sample. ml standard Zn Fluorometer reading 0.000 6.12 1.00 7.81 4.00 11,16 8.00 15.68 12.00 20.64
The following volumes of a solution containing 1.10 ppm of Zn were pipetted into separatory funnels each containing 5.00 ml of an unknown zin c solution: 0.00, 1.00, 4.00, 8.00 and 12.00. Each was extracted with three 5-ml aliquots of CC, containing an excess of 8-hydroxyquinoline. The extracts were then diluted to 25.0 ml and their fluorescence measured with a fluorometer. Plot the data and calculate the concentration of zinc in the sample. ml standard Zn Fluorometer reading 0.000 6.12 1.00 7.81 4.00 11,16 8.00 15.68 12.00 20.64
Macroscale and Microscale Organic Experiments
7th Edition
ISBN:9781305577190
Author:Kenneth L. Williamson, Katherine M. Masters
Publisher:Kenneth L. Williamson, Katherine M. Masters
Chapter7: Extraction
Section: Chapter Questions
Problem 1Q
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Question
![The following volumes of a solution containing 1.10 ppm of
Zn?. were pipetted into separatory funnels each containing
5.00 ml of an unknown zin c solution: 0.00, 1.00, 4.00, 8.00
and 12.00. Each was extracted with three 5-mL aliquots of CCI.
containing an excess of 8-hydroxyquinoline. The extracts were
then diluted to 25.0 ml and their fluorescence measured with a
fluorometer. Plot the data and calculate the concentration of
zinc in the sample.
ml standard Zn
Fluorometer
reading
0.000
6.12
1.00
7.81
4.00
11,16
8.00
15.68
12.00
20.64](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F59f24e27-f8f3-4a0a-b115-8c2b5997887b%2F8892d487-2018-488a-b4d5-abf02f4d5677%2Fdtiw5e6_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The following volumes of a solution containing 1.10 ppm of
Zn?. were pipetted into separatory funnels each containing
5.00 ml of an unknown zin c solution: 0.00, 1.00, 4.00, 8.00
and 12.00. Each was extracted with three 5-mL aliquots of CCI.
containing an excess of 8-hydroxyquinoline. The extracts were
then diluted to 25.0 ml and their fluorescence measured with a
fluorometer. Plot the data and calculate the concentration of
zinc in the sample.
ml standard Zn
Fluorometer
reading
0.000
6.12
1.00
7.81
4.00
11,16
8.00
15.68
12.00
20.64
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