3. Using the Rydberg equation, calculate the wavelength of a photon emitted for the electronic transition n3 → n2 in the hydrogen atom. 4. Calculate the frequency and energy of the photon described in the previous problem.

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Q: Explain Reaction of Organometallic Reagents with Aldehydes and Ketones ?

A:

Q: 5.

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".