Difference between revisions of "ESR Lab Activity"
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(Created page with "==INTRODUCTION== We are going to collect an ESR spectrum from a series of substituted hydroquinones. ==EXPERIMENTAL== =Beaker Method= :Solution A: 1 M NaOH; 1 gram NaOH (39.9...") |
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==EXPERIMENTAL== | ==EXPERIMENTAL== | ||
| − | =Beaker Method= | + | ===Beaker Method=== |
:Solution A: 1 M NaOH; 1 gram NaOH (39.997 g/mol) into 25 mL EtOH. | :Solution A: 1 M NaOH; 1 gram NaOH (39.997 g/mol) into 25 mL EtOH. | ||
:Solution B: 1 M hydroquinone solution. | :Solution B: 1 M hydroquinone solution. | ||
| + | :To 2 ml of 1 M hydroquinone solution add 2-3 drops of solution A. A color change will indicate the reaction has occurred. Quickly transfer sample to ESR sample tube, place in ESR spectrometer, tune, and collected data. | ||
| − | + | ==Flow Method=== | |
| − | + | :Solution A: 0.05 M NaOH; 0.05 grams NaOH (39.997 g/mol) into 25 ml EtOH. | |
| − | =Flow Method= | + | :Solution B: 1 M hydroquinone solution. |
| − | Solution A: 0.05 M NaOH; 0.05 grams NaOH (39.997 g/mol) into 25 ml EtOH. | ||
| − | |||
==RESULTS== | ==RESULTS== | ||
Revision as of 21:56, 20 April 2016
INTRODUCTION
We are going to collect an ESR spectrum from a series of substituted hydroquinones.
EXPERIMENTAL
Beaker Method
- Solution A: 1 M NaOH; 1 gram NaOH (39.997 g/mol) into 25 mL EtOH.
- Solution B: 1 M hydroquinone solution.
- To 2 ml of 1 M hydroquinone solution add 2-3 drops of solution A. A color change will indicate the reaction has occurred. Quickly transfer sample to ESR sample tube, place in ESR spectrometer, tune, and collected data.
Flow Method=
- Solution A: 0.05 M NaOH; 0.05 grams NaOH (39.997 g/mol) into 25 ml EtOH.
- Solution B: 1 M hydroquinone solution.