An acid and a base which differ by a proton are said to form a conjugate acid base pair or the pairs of substances which can be formed from one another by the gain or loss of protons are known as conjugate acid base pairs.

Acid1 + Base2	Acid2 + Base1
HCl + H2O HNO3 + H2O HCN + H2O HS- + H2O H2O + H2O	H3O+ + Cl- H3O++ NO3 H3O+ + CN- H3O+ + S-2 H3O+ + OH-

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Index

12.1 - Lowry and Bronsted Concept
12.2 - Conjugate Acid Base Pairs
12.3 - Amphoteric Substance
12.4 - Lewis Acids and Bases
12.5 - Strong and Weak Acids and Bases
12.6 - Dissociation
12.7 - Ostwald's Dilution Law
12.8 - Hydrogen Ion Concentration : pH
12.9 - Polyprotic Acids
12.10 - Salts
12.11 - Methods of Preparation of Salts
12.12 - Properties of Salts

Chapter 13