Titrausmäärän

Titrausmäärän, also known as the equivalence point or endpoint in titration, is a critical concept in analytical chemistry. It refers to the point during a titration process where the amount of titrant added is exactly equal to the amount of analyte present in the solution. At this point, the reaction between the titrant and the analyte is complete, and the solution reaches a state of chemical equilibrium.

The titrausmäärän is determined by monitoring the solution's properties, such as pH, conductivity, or redox potential, as the titrant is added. The point at which these properties change abruptly indicates the equivalence point. This change is often visualized on a graph, where the x-axis represents the volume of titrant added and the y-axis represents the measured property.

The titrausmäärän is essential for calculating the concentration of the analyte in the solution. By knowing the volume of titrant used and its concentration, one can determine the amount of analyte present. This information is crucial in various fields, including environmental monitoring, pharmaceutical analysis, and food science.

In practice, the titrausmäärän may not be reached exactly due to factors such as experimental error or the presence of impurities. Therefore, it is common to use an indicator or a potentiometric method to detect the endpoint, which is the point at which the indicator changes color or the potential reaches a specific value. The endpoint is often slightly past the equivalence point and is used to estimate the titrausmäärän.