ABSORBANCE- Spectrophotometer - How to select the working wavelength High school Chemistry

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e-profs - Physique Chimie

Published on Dec 20, 2021
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Absorbance is a physical quantity that allows us to relate the amount of light absorbed by a solution for a given wavelength. In this video, we will see how a spectrophotometer works and how to find the working wavelength. 00:00 - Absorbance 01:31 - Spectrophotometer and absorption spectrum 02:49 - Finding the working wavelength In reality, we use a grating rather than a prism in the spectrophotometer. Indeed, the grating decomposes the light much better than a prism and it is also much less bulky than the latter. ⏯️ Explanation of Beer Lambert's Law • BEER-LAMBERT Law - Absorbance and C... High School Program - 1st year physics chemistry specialty: 📝Theme: Constitution and transformations of matter Sub-theme: 1. Determination of the composition of the initial system using physical quantities ✔️ Explain or predict the color of a species in solution from its UV-visible spectrum. Find other videos and methodological sheets to download for free: https://eprofs.fr Twitter: / e_profs Instagram: / e_profs_physique_chimie Facebook: / e-profs-467482426970398

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