Why it is neccessary to rinse the burette after washing with water ?
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It is important to rinse the burette after washing with water because if we use the burette without proper cleaning and rinsing then the result of the certain experiments using that burette will be inaccurate and the reading values may vary due to the droplets of water present in the burette.
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It is necessary to rinse the burette after washing with water to ensure a more accurate endpoint.
Explanation:
If you leave the burette after rinsing with water it may have some amount of water left in it. This will dilute the concentration of the solute that is going to be filled hence it will make slight changes in the endpoint of the titration. To avoid this error we usually was the burette with the solution to be used. This will remove the tiny amount of water left in the burette and if anything remains it will be the same solution. Hence it gives a more accurate endpoint.
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