Using A Burette. Step 1. Figure 4.9 4. 9: Step 1. A vertical stopcock means the buret is open and a horizontal stopcock means the buret is closed. A helpful tip: the direction of the stopcock follows the direction of the flow. Step 2. Figure 4.10 4. 10: Step 2. Rinse the burette and glassware with the titrant a few times to prevent contamination. Table of Contents Parts of a Burette How to Use a Burette Using a Burette in a Titration Troubleshooting How to Read a Burette Tips for Reading a Burette Reading the Burette in the Image Additional Tips How to Perform a Titration Parts of a Burette The burette is used to add a known volume of the blue solution to the flask. During a Titration, keep the liquid flowing normally until a few mL from the endpoint (the point at which the color changes). Around the endpoint, allow the liquid to flow drop-by-drop. After reaching the endpoint, rinse and dry the tip of the burette. A burette is used when we are not sure of the exact volume of solution that will be required for reaction. The volume delivered by a burette can be measured to a high degree of accuracy and precision. A burette must be prepared properly before use. To prepare a burette: Firstly, it is rinsed thoroughly (3 small rinses) with deionised water, to The titration process can be observed in the video below. A measured volume of the solution to be titrated, in this case, colorless aqueous acetic acid, CH 3 COOH( aq ) is placed in a beaker. The colorless sodium hydroxide NaOH( aq ), which is the titrant , is added carefully by means of a buret. A burette is used to accurately measure the volume of liquid that has been allowed to pour out of it. .

why is a burette used in titration