what is the dissolved oxygen Observations:Burette Reading (ml)Volume of NazS203solution (ml)(Final Value - InitialValue)Normality of NazS203solution (N)Volume ofsample (ml)InitialFinalValueValue20110.004.54.5Dissolved Oxygen (mg/l) :FormulaCheckDissolved Oxygen NNazSzO3 × VNazS203 × 8000(D.O.) as mg/lVolume of the sampleNNaz S203 =Normal of Naz S203VNazs203= Volume of Naz S203

Given: Normality (N) of Na2S2O3 = 10.00 N Volume of the sample = 201 ml Volume (V) of Na2S2O3 = 4.5…

Observations: Burette Reading (ml) Volume of sample (ml) Normality of NazS203 solution (N) Volume of NazS203 solution (ml) (Final Value - Initial Value) Initial Final Value Value 201 10.00 4.5 4.5 Dissolved Oxygen (mg/l) • Formula Check Dissolved Oxygen NnazSzO3 x VNaz5203 x 8000 (D.O.) as mg/l Volume of the sample Nyazs203 = Normal of Naz S203 VNaz8z03 = Volume of Na28203

Observations: Burette Reading (ml) Volume of sample (ml) Normality of NazS203 solution (N) Volume of NazS203 solution (ml) (Final Value - Initial Value) Initial Final Value Value 201 10.00 4.5 4.5 Dissolved Oxygen (mg/l) • Formula Check Dissolved Oxygen NnazSzO3 x VNaz5203 x 8000 (D.O.) as mg/l Volume of the sample Nyazs203 = Normal of Naz S203 VNaz8z03 = Volume of Na28203

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter7: Statistical Data Treatment And Evaluation

Section: Chapter Questions

Problem 7.24QAP

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