A Level Chemistry Revision "Infrared Spectroscopy"

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In this video, we look at infrared spectroscopy. First we explore how covalent bonds vibrate in organic compounds and how this can be used in infrared spectroscopy. We then look at interpreting infrared spectra for alcohols, aldehydes and ketones, and carboxylic acids. We then explore how the absorption of infrared by greenhouse gases is leading to global warming and then we look at the practical applications of infrared spectroscopy.
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Breathalyser
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User:Mattes, Public domain, via Wikimedia Commons
Car exhaust
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Ruben de Rijcke, CC BY-SA 3.0 creativecommon..., via Wikimedia Commons

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I have a request for lecture on ISOMERISM from basic to advanced level. I know you have covered a bit of it. But I have tried couple of many tutorials for isomerism and still haven't actually mastered/ learnt it well.
Please cover
OPTICAL ISOMERISM
which includes Stereoisomerism. This is most tricky part.
Please prof.

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