Hello, please show work and help me understand how to solve these questions. The answers are in bold, but I do not know how to get the answer. Sunlight can excite electrons within atoms and molecules in the atmosphere. Consider an atom of hydrogen that absorbs light of a wavelength 389.4 nm. Part 1: What is the energy, in J, that corresponds to this wavelength? answer: 5.105×10-19 J Part 2: What is the energy, in kJ/mol, that corresponds to this wavelength of light? (NOTE: This question depends on your answer to the previous part. Please submit part 1 prior to submitting this part. If you change your answer/resubmit part 1, please resubmit your answer to this part) answer: 6.022×1020 kJ/mol Part 3: Considering an electron in a hydrogen atom, if the initial value for n is 2, what is the final value for n? Answer: 8

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Quantum Chemistry

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.