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Lab 4 Chem

Spectrophotometric Analysis

QuestionAnswer
Red light has a wavelength of 600-700nm 6000-7000A
Yellow light has a wavelength of 500-600nm 5000-6000A
Blue light has a wavelength of 400-500nm 4000-5000A
radiation in the range of 10nm-400nm UV
longer wavelenghts within UV range(nearer to visible light) near UV
shorter wavelenghts(further away from visible region) far UV
Near UV radiation in the wavelength range 320-400nm is responsible for ____,overexposure causes sunburning. tanning
radiation with wavelenght of 10^-2nm and 10nm x-rays
less than 10^2 nm gamma radiation
wavelength in the 700-100,000nm infra-red
wavelength 10^5-10^7 microwave radiation
wavelength 10^8-10^10nm Radar & TV
instrument which can produce light of a very specific wavelength spectrophotometer
shine light of a particular color through a sample and then measure very accurately the amount of light on the other end spectrophotometer
If no light of a wavelength is absorbed 0 absorbance
if all light is absorbed infinite absorbance
intensity of the color is proportional to the amount of substance present. The more absorbance ,the more intense a color is. (concentration) Beer Law
Created by: edith1234
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