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Food Colorant Specialist Position at YUME Food Products Inc. A Self-Directed Experiment Stupid Fag1 Cheating Fag 2 Lab Section #HERE DATE
Introduction Every species of atom absorbs and emits only specific, quantized wavelengths of photons. Additionally, the concentration of these species in a solution of unknown concentration may be measured by comparing the amount of photons absorbed by the species in a series of known concentrations. It is therefore possible to identify the species of atoms present in a sample solution as well as their concentration levels through absorption spectroscopy, which would enable the duplication of an unknown sample solution. Photons of light may interact with matter by transferring energy to it. However, a photon of light may transfer energy to an atom only if the energy of that photon meets a certain, quantized, energy threshold which is capable of exciting an electron of the specific atom into an energy level above its ground state of n=1. If this energy transfer and excitation occurs the photon is considered to have been absorbed by the species of atom. There is a direct correlation between the energy of a photon and that photon’s wavelength. This relationship is represented by the Energy of a Photon equationE = h(c/λ). In this equation E = the energy of a photon (in Joules), h = Plank’s constant (6.626e-34, in Joule seconds), c = speed of light (3.00e8 in meters per second), and λ= the wavelength of the photon (in meters). Because every species of atom absorbs only certain quantized wavelengths of energy the species of atoms present in a sample may be identified by observing which wavelength of photons are absorbed when light is applied to the sample.