Why Must the Funnel Be Removed Before Titration Begins?

Explanation:

A funnel is commonly used to fill the burette with the titrant due to the precise measurement it allows. However, it is crucial to remove the funnel before the titration process starts to maintain the accuracy of the results.

During a titration, the volume of the titrant added from the burette plays a significant role in calculating the concentration of the analyte in the solution. The volume is typically measured with great precision, often up to the nearest 0.01 mL.

If the funnel used to fill the burette is not removed before the titration begins, there is a risk of residual liquid from the funnel dripping into the burette. This can lead to inaccuracies in the volume of the titrant, affecting the final results of the titration analysis.

Therefore, it is essential to remove the funnel to ensure that only the intended volume of the titrant is dispensed during the titration process. By eliminating the possibility of introducing additional liquid from the funnel, the accuracy of the titration analysis is preserved.

If the funnel is left in place, even a small amount of residual liquid can have a significant impact on the final result of the titration, potentially leading to errors in the concentration calculations.

Ultimately, removing the funnel before the titration begins is a necessary step to guarantee the precision and reliability of the titration analysis, as it minimizes the risk of introducing errors that could compromise the accuracy of the results.