Lecture 15 post

Lecture 15 post - Example 7.2- Calculate the number of...

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Example 7.2- Calculate the number of photons in a laser pulse with wavelength 337 nm and total energy 3.83 mJ
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What is the frequency of radiation required to supply 1.0 x 10 2 J of energy from 8.5 x 10 27 photons?
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Spectra when atoms or molecules absorb energy, that energy is often released as light energy fireworks, neon lights, etc. when that light is passed through a prism, a pattern is seen that is unique to that type of atom or molecule – the pattern is called an emission spectrum non-continuous can be used to identify the material flame tests Rydberg analyzed the spectrum of hydrogen and found that it could be described with an equation that involved an inverse square of integers - × = 2 2 2 1 1 - 7 n 1 n 1 m 10 097 . 1 1 λ
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Emission Spectra
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Exciting Gas Atoms to Emit Light with Electrical Energy Hg He H
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Examples of Spectra Oxygen spectrum Neon spectrum
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Identifying Elements with Flame Tests Na K Li Ba
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Emission vs. Absorption Spectra Spectra of Mercury
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Bohr’s Model Neils Bohr proposed that the electrons could only have
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This note was uploaded on 05/20/2008 for the course CHEM 115 taught by Professor Larkin during the Spring '08 term at Bloomsburg.

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Lecture 15 post - Example 7.2- Calculate the number of...

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