Interpretation:
The measurement made in the titration of pool water with standard sulfuric acid has to be explained. The reason for choosing bromocresol green as indicator has to be explained.
Concept Introduction:
There are primarily four types of acid-base titrations –
- Strong base vs strong acid
- Strong base vs weak acid
- Weak base vs strong acid
- Weak base vs weak acid
Equivalence point ensures the titration reaction becomes completed and at this point the number of moles of titrant and the number of moles of analyte remain equal. We cannot see with naked eyes the completion of titration reaction – the titrant and the analyte becoming equal in stoichiometric proportion, hence we use a chemical compound called indicator called which indicates the end of the reaction by color change. The end point refers to the color change and indicates equivalence point has been reached.
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