Buffer Solution A buffer solution is defined as a solution which resist any change in its pH value even when small amount of acid or base are added to it. Types of the buffer solution 1) Solution of single substance The solution of the salt of weak acid and weak base eg : ammonium acetate ( CH3COOH) act as a buffer. 2) Solution of Mixture: These are of 2 … [Read more...] about Buffer solution and Buffer Action