ABSTRACT
Acid-base titration is a quick and accurate method of determining acidic or basic substances in analytical samples. Most commonly, the end point of an acid-base titration is detected by observing the color change of an indicator. A pH meter can also be used to follow the pH changes during an acid-base titration, called potentiometric titration. We have to be very careful to notice the reciprocal relationship between pH and a strongly acidic species. Several inorganic acids and bases and hundreds of organic compounds are sufficiently acidic or basic to be determined by acid-base titration. Acids and bases are commonly classified as strong or weak, to indicate the approximate degree of ionization. The strong acids include hydrochloric, hydrobromic, hydroiodic, nitric, perchloric, sulfuric, and organic sulfonic acids.
