Table 8.1 Hardness determination of water samples.Volume of NazHY 2 H20, mLCa+, mg/L(mean SD)mL ofReplicateSampleInitialFinalVolume added54 mL15.115.1154 mL15.130.715.6254 mL30.745.314.63Sample Calculations (show calculation for one replicate only)mg.(mL of titrantsample) (M of titrant)(40000)Ca2+mL of samplemg.Ca2+Biology Environmental Science

First you have to standardize the EDTA solution before the titration of hard sample solution. Let…

Table 8.1 Hardness determination of water samples. mL of Volume of NazH2Y 2 H2O, mL Ca2+, mg/L Replicate Sample Initial Final Volume added (mean+SD) 54 mL 15.1 15.1 1 54 mL 15.1 30.7 15.6 54 mL 30.7 45.3 14.6 3 Sample Calculations (show calculation for one replicate only) (ml of titranteample) (M of titrant)(40000) mL of sample mg. Ca²+ mg Са2+ 2.

Table 8.1 Hardness determination of water samples. mL of Volume of NazH2Y 2 H2O, mL Ca2+, mg/L Replicate Sample Initial Final Volume added (mean+SD) 54 mL 15.1 15.1 1 54 mL 15.1 30.7 15.6 54 mL 30.7 45.3 14.6 3 Sample Calculations (show calculation for one replicate only) (ml of titranteample) (M of titrant)(40000) mL of sample mg. Ca²+ mg Са2+ 2.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter7: Statistical Data Treatment And Evaluation

Section: Chapter Questions

Problem 7.26QAP

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