Acidimetry and Alkalimetry of Titration - Term Paper Example

The titration procedure is divided into the following steps (Tro 130). 1. The solution of the analyte is placed in a titration flask, where the analyte refers to the known substance of unknown concentration. 2. A burette is filled with a titrant of known concentration, where the titrant refers to the solution whose concentration and volume is known. 3. An indicator, which is usually a substance that would not affect the concentration of either the titrant or analyte, is added into the analyte in the titration flask.

The indicator is usually a substance which has one color when it is pure and might change color when added into the analyte. The color changes of the indicator are usually known when it is added into an acidic, basic or neutral solution. This means that the indicator is a substance used to determine the PH of a substance, where the PH refers to the acidity or basicity of a substance. 4. The titrant is then added from the burette into the titration flask drop-by-drop, while carefully monitoring any color change in the titration flask. 5. The titration continues until the point where the color of the solution in the titration flask suddenly changes color.

As previously stated, the color of the indicator in the solution is always known; therefore, when the solution changes color to indicate a neutral solution, the titration process is stopped. At this point, it is known that the titrant and the known volume of the analyte have completely reacted to give a neutral solution. This point is called the end-point of the solution, and it corresponds to a perfect stoichiometric solution between the two solutions; the titrant and the analyte. 6. At this point, the burrito is rad to determine the amount of titrant that was used to reach the endpoint of the solution, after which the molarity of the unknown substance, the analyte, can be calculated using the formula stated above.