Sunscreen contains compounds that absorb ultraviolet light. When sunscreen is applied to skin, it prevents ultraviolet light from reach- ing the skin. The graph that follows shows the absorbance of light as a function of wavelength for two different compounds (2-EHMC and TDSA) common in sunscreen. Absorbance is a measure of the amount of light absorbed by the compound-the higher the absor- bance, the more light is absorbed. Study the graph and answer the questions. 0.6 UV-E UV-A 0.5 0.4 2-EHMC 0.3 TDSA 0.2 0.1 290 300 310 320 330 340 350 360 370 380 390 400 Wavelength (nm) Calculate the energy of a photon at the maximum absorption of 2-EHMC. Absorba nce
Sunscreen contains compounds that absorb ultraviolet light. When sunscreen is applied to skin, it prevents ultraviolet light from reach- ing the skin. The graph that follows shows the absorbance of light as a function of wavelength for two different compounds (2-EHMC and TDSA) common in sunscreen. Absorbance is a measure of the amount of light absorbed by the compound-the higher the absor- bance, the more light is absorbed. Study the graph and answer the questions. 0.6 UV-E UV-A 0.5 0.4 2-EHMC 0.3 TDSA 0.2 0.1 290 300 310 320 330 340 350 360 370 380 390 400 Wavelength (nm) Calculate the energy of a photon at the maximum absorption of 2-EHMC. Absorba nce
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter10: Molecular Geometry And Chemical Bonding Theory
Section: Chapter Questions
Problem 10.84QP
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Transcribed Image Text:Sunscreen contains compounds that absorb ultraviolet light. When
sunscreen is applied to skin, it prevents ultraviolet light from reach-
ing the skin. The graph that follows shows the absorbance of light
as a function of wavelength for two different compounds (2-EHMC
and TDSA) common in sunscreen. Absorbance is a measure of the
amount of light absorbed by the compound-the higher the absor-
bance, the more light is absorbed. Study the graph and answer the
questions.
0.6
UV-E
UV-A
0.5
0.4
2-EHMC
0.3
TDSA
0.2
0.1
290 300 310 320 330 340 350 360 370 380 390 400
Wavelength (nm)
Calculate the energy of a photon at the maximum absorption
of 2-EHMC.
Absorba nce
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