shhardness_04 - Burette Reading (ml) Total Volume (ml)...

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APPENDIX FOR PROJECT #4 HARDNESS Name: _________________________ Date of Experiment: _________________________ Group Members : ______________ ______________ ______________ Sample Description Sample I.D. Description Date Collected or Prepared Treated Water (U.M. Tap) Raw Potable Water Distilled Water Blank 200 mg/L control as CaCO 3 DATA Preparation of Control Sample Description Conc. of Stock (mg/l) Vol. Stock Used (ml) Final Vol. of standard/control (ml) 200 mg/L control as CaCO 3 1000 Comments Concerning Sample Preparation: Standardization of EDTA titrant Sample Description Vol. of Solution in Beaker (ml) Vol. EDTA Required to Reach End Point (ml) Concentration of EDTA Titrant as mg/L as CaCO 3 CaCO 3 1000 mg/L 20 Average Concentration Provide a sample computation for determining the concentration of the EDTA titrant.
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DATA (Continued) Data Sample I.D. Description
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Unformatted text preview: Burette Reading (ml) Total Volume (ml) Initial Final Treated Water (U.M. Tap) Raw Potable Water Distilled Water Blank 200 mg/L control 200 mg/L control Notes or comments about the titration. DATA ANALYSIS Compute the equivalent concentration (eq/L) of the EDTA titrant. Show Work. Use the average of the values obtained. Hardness of the Samples and Categorize Them as Soft, Moderately Hard, or Very Hard Sample I.D. Description Hardness Hardness Category mg/L as CaCO 3 eq/L Treated Water (U.M. Tap) Raw Potable Water Distilled Water Blank 200 mg/L control 200 mg/L control DATA ANALYSIS (Continued) Compute the % error of the experiments using the average values of the 200 mg/L control. DISCUSSION AND CONCLUSION 1.Discuss data quality and possible sources of error....
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shhardness_04 - Burette Reading (ml) Total Volume (ml)...

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