The DO of a water sample used in a steel industry was tested by Winkler’s method. The following titre values were obtained: Titration of 100 ml water added with MnSO4, alkaline KI solution and conc. H2SO4 in prescribed quantities with sodium thiosulphate solution gave three values, 8 ml, 8.2 ml, 8.2 ml. The titration of thio solution used for titration with 20 ml standard K2Cr2O7 (0.01 N) solution resulted in three values, 19.5 ml, 19.8 ml and 19.8 ml. Estimate the amount of DO present in the given water in ppm.
The DO of a water sample used in a steel industry was tested by Winkler’s method. The following titre values were obtained: Titration of 100 ml water added with MnSO4, alkaline KI solution and conc. H2SO4 in prescribed quantities with sodium thiosulphate solution gave three values, 8 ml, 8.2 ml, 8.2 ml. The titration of thio solution used for titration with 20 ml standard K2Cr2O7 (0.01 N) solution resulted in three values, 19.5 ml, 19.8 ml and 19.8 ml. Estimate the amount of DO present in the given water in ppm.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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The DO of a water sample used in a steel industry was tested by Winkler’s method. The following titre values were obtained: Titration of 100 ml water added with MnSO4, alkaline KI solution and conc. H2SO4 in prescribed quantities with sodium thiosulphate solution gave three values, 8 ml, 8.2 ml, 8.2 ml. The titration of thio solution used for titration with 20 ml standard K2Cr2O7 (0.01 N) solution resulted in three values, 19.5 ml, 19.8 ml and 19.8 ml. Estimate the amount of DO present in the given water in ppm..
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