1 mercer, rachel chem 2401003 november 15, 2016 experiment 12: determining hardness of richardson tap water through edta titration executive summary: the purpose of this experiment was to find the concentration of calcium in tap water samples and compare them to the county concentrations. 1jill bontrager lab performed on: march 17, 2009 experiment 10: exploring the water hardness of bottled waters chem 111-103 group members: kirst.
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