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Unformatted text preview: 3 Total Treated Water (U.M. Tap) Raw Potable Water Distilled Water Blank 2 mg/L control 2 mg/L control Results Assuming NCl 3 Not Present Sample I.D. Description Chlorine Concentration (mg/l as Cl 2 ) Free Cl 2 NH 2 Cl NHCl 2 NCl 3 Total Treated Water (U.M. Tap) Raw Potable Water Distilled Water Blank 2 mg/L control 2 mg/L control Which of the two tables above is considered the correct one? ___ with NCl 3 ___ without NCl 3 DATA ANALYSIS (continued) Compute the % error of the experiments using the 2 mg/L control. Provide a value for total residual only (free + combined). Compute the standard deviation of the experiment using data from the replicates on the control. DISCUSSION AND CONCLUSION 1.Discuss data quality and possible sources of error....
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- Spring '11