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53:54 Lecture 02-03-2021 Lecture 02-03-2021	Lecture 02-03-2021 energy light questions amount question color colors spectroscopy electrons molecule spectrum kind ground absorbance absorption electron slide transition length peak From Naga Rama Kothapalli 0 likes 2 plays 0
50:58 Lecture 02-05-2021.mp4 Lecture 02-05-2021.mp4	Lecture 02-05-2021.mp4 dna concentration absorption absorbance protein coefficient acids extinction amino questions concentrations sample lab structure molecule question light reaction uv ph From Naga Rama Kothapalli 0 likes 2 plays 0