Titration is a technique used to determine the concentration of a solute in a solution. In this procedure, one solution is added to another solution until the chemical reaction between the two solutes is complete; the concentration of one solution is known and that of the other is unknown. In other words, it is an analytical process of analyzing the composition of a solution by adding known amounts of a standardized solution until a given reaction (color change, precipitation, or conductivity change) is produced. From the volume of the sample and the volume of standard solution used, the concentration of a specific material may be calculated. This process is often used for instance, in the determination of a drug dosage.