|
( Weak acid)
A weak acid is an acid that does not completely donate all of its hydrogens when dissolved in water. These acids have higher pKa compared to strong acids, which release all of their hydrogens when dissolved in water. While strong acids are generally assumed to be the most corrosive, this is not always true. The carborane superacid (H(CHB11Cl11), which is one million times stronger than sulfuric acid, is entirely non-corrosive, whereas the weak acid hydrofluoric acid (HF) is extremely corrosive and can dissolve, among other things, glass and all metals except iridium. Weak acids do not ionize in a solution to a significant extent; that is, if the acid was represented by the general formula HA, then in aqueous solution a significant amount of undissociated HA still remains. Weak acids in water dissociate as The equilibrium concentrations of reactants and products are related by the Acidity constant expression, (Ka)
|
Weak acid Subcategories
Weak acid Articles
|
| 
