complexometric titration

Question

EDTA is used in complexometric titration to determine:

RankGuru · Accepted Answer

**EDTA** (Ethylenediaminetetraacetic acid) is a hexadentate chelating agent.
- **Application**: Specifically used to measure the **Total Hardness** of water, which is caused by the presence of **$Ca^{2+}$** and **$Mg^{2+}$** ions.
- **Indicator**: **Eriochrome Black T** (EBT) is used. In the presence of metal ions, EBT forms a wine-red complex. As EDTA is added, it 'steals' the metal ions from the EBT. Once all metal ions are complexed by EDTA, the indicator returns to its free **blue color**, signaling the end point.

Rank Guru

complexometric titration

Select the correct option:

More complexometric titration Practice Questions

EDTA titration of Ca2+ requires buffer to maintain pH around: