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Wednesday, July 20, 2022

Why does the burette need to be rinsed before titration?

After washing the burette with water, we have to rinse it with titrant so that the results of experiments or titrations are more accurate. It is required to rinse the burette with water after washing because if the burette is used without adequate cleaning and washing, the results of some studies using the burette may be inaccurate and the readings due to the presence of water droplets values may vary.

Titration, or titrimetry, is a quantitative and volumetric method for determining the concentration of an unknown solution using the concentration of a known solution in the presence of an indicator. A burette, pipette, conical flask, volumetric flask, beaker, etc. are required for conducting the titration.

Why is it important to rinse the burette with the titrant before beginning the titration?

It is significant to rinse the burette with distilled water to remove contaminants. In addition, it should be rinsed with a titrant to remove any possible traces of distilled water, to ensure that the solution in the burette is not diluted.

Why do you need to rinse the burette with a base before you completely fill it with NaOH?

The purpose of the burette is to measure the volume precisely. The accuracy of the titration determines its accuracy. The accuracy of a titration is directly proportional to precision.

If the burette had an acidic chemical residue, it would neutralize a portion of the sodium hydroxide solution that you are using to measure. This will lead you to believe that there was more acid in our sample than it actually was.

The rinsing with base ensures that none of your NaOH is unintentionally neutralized by unwanted chemical residue in the burette, which would change the concentration of a prepared solution of NaOH which may give a calculation error.

Why is it important to rinse the burette of an auto titrator before analysis?

If the burette hasn't dried completely before we use it, any trace of water that's still inside will dilute our titrant, resulting in a change in the concentration of the solution.



People also ask
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