Exp-3 - CHM111L/A11 Group#3 2014102641 EXPERIMENT 3...

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CHM111L/A11Group #32014102641EXPERIMENT 3Application of Titrimetric AnalysisDomingo, Zairus Dref G.Objectives:To prepare standard solutions for various type of titration. To determine the amount of unknown from a sample using various titrimetric analysis.To determine the water hardness, in ppm Ca, in the unknown.To determine the composition and concentration of the base mixtures.Sample: 1.Base Mixture Sample2.EDTA solution3.Unknown Water SampleSample Description1.The initial base mixture sample was clear and in liquid form with no odor. Throughout the experiment, it was titrated and changed colors from a light pink color (solution with phenolphthalein indicator and titrated with standardized HCl solution) to a salmon pink color (solution with methyl orange and titrated with standardized HCl solution).2.The reagents used (Na2H2Y2H2O, NaOH, MgCl2-6H2O, CaCO3) were all solid either in pellets or

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