titration endpoint

Question

At titration endpoint, indicator color change signifies:

RankGuru · Accepted Answer

1. **Equivalence Point**: The theoretical point where the moles of titrant exactly equal the moles of analyte according to the stoichiometry.
2. **Endpoint**: The physical point where the **indicator changes color**.
3. **Practical Reality**: Indicators have a specific $pH$ range. We select an indicator such that its transition range brackets the expected $pH$ of the equivalence point.
4. **Logic**: The color change signals that the equivalence point has been reached or slightly exceeded. There is usually a very small difference between the theoretical equivalence point and the observed endpoint, known as **titration error**.

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titration endpoint

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