Why is it that only a few drops of indicators are used for an acid-base titration?
Is it something to do with the indicator being able to change the pH of the solution itself if too much is added, or perhaps it cannot accurately tell the end point once too much is added?
Best Answer - Chosen by Voters
Indicator itself is a weak acid or a weak base.
Adding too much of indicator will influence the pH of the solution and hence will not be able to change colour at the end point.
That's why only two drops of indicator are usually used.
Adding too much of indicator will influence the pH of the solution and hence will not be able to change colour at the end point.
That's why only two drops of indicator are usually used.
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