New AP & General Chemistry Video Playlist - Beer Lambert's Law, Absorbance & Transmittance - Spectrophotometry, Basic Introduction - Chemistry

This chemistry video tutorial provides a basic introduction into spectrophotometry and beer lambert's law also known as beer's law. It briefly explains how a spectrophotometer works. It uses a light source and a monochromator which selects a specific wavelength of light using a prism or a grating. The amount of light striking the sample is the incident light Io and the intensity of light picked up by the detector is I. The ratio of I to Io is known as the transmittance. The absorbance is the negative log of the transmittance. As the transmittance increases, the absorbance decreases. Beer's Lambert law is associated with the equation A = elc where A is the absorbance, e is the molar absorptivity, l is the pathlength in cm and c is the concentration in Molarity or moles per liter. This video contains plenty of examples and practice problems calculating the absorbance, molar absorptivity and unknown concentration using beer lambert's law. This video explains how to determine the linear equation in slope intercept form given a data table of absorbance and concentration. It also explains how to determine the unknown concentration using proportions. Final Exam and Test Prep Videos: https://bit.ly/41WNmI9 __________________________________ How To Balance Nuclear Equations: https://www.youtube.com/watch?v=8hnhhBQBQy4 Alpha, Beta, & Gamma Decay: https://www.youtube.com/watch?v=zF5pn8FVlPI Half Life Chemistry Problems: https://www.youtube.com/watch?v=WTQvfvoOF3g Carbon-14 Dating Problems: https://www.youtube.com/watch?v=6aDswTVFGfs ___________________________________ Nuclear Binding Energy & Mass Defect: https://www.youtube.com/watch?v=eLwraf_A80U Nuclear Chemistry & Radioactive Decay: https://www.youtube.com/watch?v=F3NSfTXTl7E General Chemistry 2 Final Exam Review: https://www.youtube.com/watch?v=lSmJN1_uVpI SAT Chemistry Subject Test Review: https://www.youtube.com/watch?v=ygpTfaSFqH8 ____________________________________ Coordinate Covalent Bond: https://www.youtube.com/watch?v=faEYK46zCh4 Complex Ions & Ligands: https://www.youtube.com/watch?v=r4H5XjJPn58 Naming Coordination Compounds: https://www.youtube.com/watch?v=yeNtqjE0dJw Beer Lambert's Law: https://www.youtube.com/watch?v=rllHziqWlgU Crystal Field Theory: https://www.youtube.com/watch?v=V1WSesBeURw ___________________________________ ACT Math Practice Test: https://www.youtube.com/watch?v=SsA7rZ8kczM Final Exams and Video Playlists: https://www.video-tutor.net/ Full-Length Videos and Worksheets: https://www.patreon.com/MathScienceTutor/collections Chemistry PDF Worksheets: https://www.video-tutor.net/chemistry-basic-introduction.html