(a) The first step in ozone formation in the upper atmosphere occurs when oxygen molecules absorb UV radiation of wave-lengths ≤242 nm. Calculate the frequency and energy of theleast energetic of these photons. (b) Ozone absorbs light having wavelengths of 2200 to 2900 Å, thus protecting organisms on Earth’s surface from this high-energy UV radiation. What are the frequency and energy of the most energetic of these photons?

Chemistry & Chemical Reactivity
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Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
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Chapter6: The Structure Of Atoms
Section6.7: One More Electron Property: Electron Spin
Problem 1.2ACP: Calculate the energy per mole of photons (in kJ/mol) for red light with a wavelength of 700 nm....
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(a) The first step in ozone formation in the upper atmosphere occurs when oxygen molecules absorb UV radiation of wave-lengths ≤242 nm. Calculate the frequency and energy of theleast energetic of these photons. (b) Ozone absorbs light having wavelengths of 2200 to 2900 Å, thus protecting organisms on Earth’s surface from this high-energy UV radiation. What are the frequency and energy of the most energetic of these photons?

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