Which enol form of ethyl 3-oxobutanoate is predominant at equilibrium? K Your answer: но OEt d) Correct answer: OH OEt b) Feedback: For enolate ions of 1,3-dicarbonyl compounds, see pp. 392-393. Conjugation of the C=C double bond with the remaining carbonyl provides a more stable enol, which rules out (a). Enols (b)-(d) may all be obtained by protonation of the same enolate or the readily interconverting stereoisomeric enolates. Of these, (b) and (d) allow stabilizing intramolecular hydrogen bonding; (b) is the more stable of the two owing to the conjugative stability of the remaining ester group.
Ionic Equilibrium
Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.
Arrhenius Acid
Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red.
Bronsted Lowry Base In Inorganic Chemistry
Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.
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