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Let's say that your titrant is NaOH. What happens is as there are OH- ions present the color changes into a pinkish hue, but the color disappears quickly because the H+ ions present in the sol'n take the OH- ions; so there is no color until the end point really =)

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What happens if the tip of the burette is not filled before the titration begins?

If the tip of the burette is not filled before the titration begins, inaccurate volume readings may result due to the introduction of air bubbles into the liquid being dispensed. This can lead to imprecise titration results and affect the accuracy of the experiment.


Why the blue color does not appear in starch solution titration?

Blue color does not appear in starch solution titration because the blue color change is specific to the iodine-starch complex. In the presence of iodine, starch forms a dark blue complex, masking the original color of the solution. This is why the absence of blue color indicates the endpoint of the titration.


What is it called when something seems to disappear in a solution?

what is it called when something seems to disappear in a solution


Why you use oxalate potassium in formol titration?

In formol titration, amino acids with formaldehyde are titrated with NaOH to measure the amount of amino acids in the solution. Potassium is also necessary for this titration and is supplied by using potassium oxalate. If calcium is present, it will react with the NaOH to form Ca(OH)2. This will make it appear to need more of the NaOH solution (and overestimate the titration). Potassium oxalate will chelate the calcium, and prevent it from reacting (forming calcium oxalate).


Why brown turbidity found in titrating KMno4 with oxalic acid?

Brown turbidity in the titration of KMnO4 with oxalic acid may be due to the formation of manganese dioxide (MnO2). This reaction occurs in acidic conditions and indicates that the end point of the titration has been reached. MnO2 is insoluble and can appear as a brown precipitate, causing turbidity in the solution.