Determination of Total Hardness of Water by EDTA Method.
Understand the Problem
The question is referring to an experimental setup for determining the hardness of water using the EDTA method, including the necessary principles and reactions involved in the process.
Answer
Use EDTA titration with EBT indicator to measure water hardness.
The determination of total hardness of water by EDTA involves titrating the water sample with an EDTA solution using the EBT indicator. The end point is identified by a color change from wine red to sky blue, indicating all metal ions have complexed with EDTA.
Answer for screen readers
The determination of total hardness of water by EDTA involves titrating the water sample with an EDTA solution using the EBT indicator. The end point is identified by a color change from wine red to sky blue, indicating all metal ions have complexed with EDTA.
More Information
The EDTA method is a common technique for measuring water hardness due to its accuracy and ability to differentiate between calcium and magnesium ions in water.
Tips
A common mistake is not maintaining the correct pH. Always ensure the buffer is added to achieve pH 10 for accurate results.
Sources
- How to determine the hardness of water sample using EDTA - medium.com
- Determining the hardness of river water by EDTA titration - open.edu
- Estimation of Hardness of Water by EDTA Method - bspublications.net
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