Weak acid

From Wikinfo

Template:Acids and Bases A weak acid is an acid that does not fully ionize in solution; that is, if the acid was represented by the general formula AH, then in aqueous solution a significant amount of undissolved AH still remains.

HA_(aq) <math> \leftrightarrow </math> H⁺_(aq) + A^-_(aq) The vast majority of acids are weak acids.

Examples

• Phosphoric acid, H₃PO₄
• Acetic acid, CH₃COOH
• Hydrofluoric acid, HF
• Acetylsalicylic acid, C₆H₄OCOCH₃CO₂H
• Nicotinic acid, C₅H₅NCOOH
• Pyruvic acid, CH₃COCOOH
• Bromothymol blue, C₂₁H₁₅NaBr₂O₃S

References

• Adapted from the Wikipedia article, "Weak_acid" http://en.wikipedia.org/wiki/Weak_acid, used under the GNU Free Documentation License