Food Colorant Procedure Proposal (1).doc - Food Colorant...

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Food Colorant ExperimentLab Section #272/10/20
IntroductionBeverage color is created through a mix of different dyes at different concentrations. Your job is to use absorption spectroscopy to analyze samples of differentdyes and compare to the Name Brand Beverage to determine the exact combination and concentration of dyes used to create it.When an electron is excited into another energy level, the energy given off is reflected as light. The energy of the photon of light, E, is calculated by the equation E=hc/λ. In this equation, h is equal to Planck’s constant (6.626E-34Js), c is the speed of light (3.00E8m/s), and λ is the wavelength of the photon absorbed (m). Each atom has a unique absorption level. The relationship between absorption and concentration is defined mathematically by the equation A= εbc, also known as the Beer-Lambert Law. A is equal to the absorbance, ε is the molar absorptivity, b is the path length, and c is the concentration. This relationship will help in determining the concentration of the dye in the Name BrandBeverage.

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