Instructional Videos
Chem 110 & 154 Absorption Spectroscopy
The following videos show the three parts of the Procedure and provide an excellent preview of what you will be performing yourself in the lab. Recommend viewing at double-speed. Some of the commentary may no longer fully apply as these videos were recorded during the pandemic when some labs were being held online. The fourth video is a recommended refresher on cleaning, rinsing, loading, and reading a burette.
Part
1 - Analyte
(19:19) optional preview of lab
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Part
2 - Standards (10:28) optional
preview of lab
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Part
3 - Spectra (5:33) optional
preview of lab
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Cleaning Rinsing Loading and Reading a Burette (9:21)
This video shows how to clean a burette prior to use, how to displace the residual water inside by rinsing it with 5 mL portions of the chemical to be used, how to safely and correctly load a burette once rinsed, and finally how to take the initial burette reading.
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Steel powder and KMnO4 analyte.