EDTA Titration of Ca2+ and Mg2+ in Bottled Water
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physics & chemistry
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date published 15/04/2008
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level : Advanced
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SummaryThe objective of this experiment is to determine the total concentration of metal ions required to completely react with EDTA, or ethylene diamine tetra-acetate. The concentration determined will then be taken as the equivalent concentration of Ca2+ and Mg2+. Ca2+ will be analyzed separately in an additional titration after Mg(OH)2 has been precipitated from the solution using a strong base.
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