Acid and Base: Arrhenius Theory – Mechanism & Applications | Cogitavers GOC Lecture

Описание: The Arrhenius theory of acids and bases is one of the earliest and most fundamental concepts in General Organic Chemistry (GOC), defining acids as proton (H⁺) donors in aqueous solutions and bases as hydroxide (OH⁻) donors. In this Cogitavers lecture, we explore the principles, scope, and limitations of Arrhenius theory, linking proton and hydroxide transfer to chemical reactivity, equilibrium, and solution behavior. This session provides learners with a clear foundation for understanding acid-base interactions and their applications in laboratory and theoretical contexts.

Cogitavers emphasizes that according to Arrhenius, acids release H⁺ ions in water, increasing the hydrogen ion concentration, while bases release OH⁻ ions, increasing the hydroxide ion concentration. The lecture includes examples such as HCl, H₂SO₄, NaOH, and KOH, demonstrating how acid and base strength can be quantified based on their ability to dissociate in water. This theory provides a basis for understanding neutralization reactions, pH changes, and ionic equilibria in aqueous solutions.

The lecture also highlights the limitations of Arrhenius theory, particularly its restriction to aqueous solutions and its inability to explain reactions that occur in non-aqueous media or without H⁺/OH⁻ transfer, which motivated the development of Brønsted-Lowry and Lewis theories. Cogitavers explains these connections to help learners appreciate the evolution of acid-base concepts and the relevance of different theoretical frameworks in predicting chemical behavior.

Students preparing for JEE, NEET, CSIR, and GATE, as well as university-level chemistry courses, will find this lecture valuable for mastering acid-base reactions, neutralization, and fundamental reactivity principles. Cogitavers ensures that Arrhenius theory is presented as a conceptual stepping stone, providing a foundation for understanding more advanced acid-base theories.

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