Compute for the concentration of an alcoholic solution of Methylene blue with an absorbance reading of 0.6681. A standard calibration was done which yielded the following result: Conc ABS 3.000 ppm 7.000 ppm 0.2099 0.4421 15.000 ppm 0.7892 20.000 ppm 0.9931 а. 12.559рpm b. 13.559ppm c. 14.559ppm d. 11.559ppm
Electronic Transitions and Spectroscopy
The term “electronic” connotes electron, and the term “transition” implies transformation. In a molecule, the electrons move from a lower to a higher energy state due to excitation. The two energy states, the ground state and the excited state are the lowest and the highest energy states, respectively. An energy change is observed with this transition, which depicts the various data related to the molecule.
Photoelectron Spectroscopy
Photoelectron spectroscopy (PES) is a part of experimental chemistry. It is a technique used in laboratories that involves projecting intense beams of radiation on a sample element. In response, the element ejects electrons for which the relative energies are measured.
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