Arrhenius theory and Lowry-Brönsted theory are two different approaches to understanding acids and bases.
The Arrhenius theory, developed by Svante Arrhenius in the late 19th century, defines acids as substances that produce hydrogen ions (H+) when dissolved in water, and bases as substances that produce hydroxide ions (OH-) when dissolved in water. According to this theory, acid-base reactions occur when hydrogen ions from an acid combine with hydroxide ions from a base to form water.
The Lowry-Brönsted theory, proposed by Thomas Lowry and Johannes Brönsted in the early 20th century, takes a broader view of acids and bases. According to this theory, an acid is a substance that donates a proton (H+) in a reaction, while a base is a substance that accepts a proton in a reaction. This theory allows for the understanding of acid-base reactions that may not involve water as the solvent and can explain reactions in non-aqueous systems.
In summary, the Arrhenius theory focuses on the role of hydrogen and hydroxide ions in aqueous solutions, while the Lowry-Brönsted theory considers any substance that can donate or accept a proton as an acid or base, regardless of the solvent.
Arrheniues theory
Lowry-Brönsted theory
1 answer
2 answers