010 - Light and Matter

In this video Paul Andersen explains why light is important in probing matter. Light travels in photons and the energy of individual photons is determined by Planck's equation. Infrared spectroscopy is useful in detecting the vibrations within a molecule and can therefore give more information on the bond types. Ultraviolet and visible spectroscopy is useful in detecting the electronic structure of matter. Beer-Lambert Law describes how increasing concentration increases the absorbance of a solution.

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