There are four hydrogen atomic emission lines in the visible region of the electromagnetic spectrum. One of these emission lines has a wavelength of 486.1 nm. How much energy is associated with one mole of photons emitted with this wavelength?

There are four hydrogen atomic emission lines in the visible region of the electromagnetic spectrum. One of these emission lines has a wavelength of 486.1 nm. How much energy is associated with one mole of photons emitted with this wavelength?

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter7: Electronic Structure

Section: Chapter Questions

Problem 7.34QE

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Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.

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There are four hydrogen atomic emission lines in the visible region of the electromagnetic
spectrum. One of these emission lines has a wavelength of 486.1 nm. How much energy is
associated with one mole of photons emitted with this wavelength?

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