About this document
Hardness Comparison of Imsdal Water by Wenguang Yang is a document available to read on EtoBox.
1) The document describes an experiment to determine the hardness of five commercial bottled waters - Bonaqua, Premier, Imsdal, Loka, and Ramlösa - using complexometric titration with EDTA. 2) The titration uses Eriochrome Black T indicator, which changes color from pink to blue at the equivalence point when EDTA complexes with Ca2+ and Mg2+ ions. 3) The experiment aims to determine the total hardness in CaCO3 ppm of the bottled waters, including comparing labeled values to experimental results for some
- Author
- Wenguang Yang
- Language
- EN