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In Vinegar Analysis lab, at the end point of a titration, there is still a drop of NaOH solution hanging on the tip of burrette. How does this affect the experimental result in this lab?

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Answer:

At the equivalence point of the titration, just one drop of NaOH will cause the entire solution in the Erlenmeyer flask to change from colorless to a very pale pink.

Explanation:

At equivalence point all the acetic acid in the vinegar has been completely used up by the NaOH. So we use an indicator Phenolphthalein to show this point.

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