1. A student measured the amount of dissolved oxygen in river water sample using Winkler titration method. The titration reaction is described by the following equation. I + 2Na,S,O, 2Nal + Na,S,O, 2 (g) 3 (aq) 6 (aq) a. Calculate the concentration of the iodine solution in given that 8.0 cm' of the 0.03 M sodium thiosulfate solution were required in the titration for complete reaction with 60 cm' portions of the iodine solution.

1. A student measured the amount of dissolved oxygen in river water sample using Winkler titration method. The titration reaction is described by the following equation. I + 2Na,S,O, 2Nal + Na,S,O, 2 (g) 3 (aq) 6 (aq) a. Calculate the concentration of the iodine solution in given that 8.0 cm' of the 0.03 M sodium thiosulfate solution were required in the titration for complete reaction with 60 cm' portions of the iodine solution.

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter11: Solutions

Section: Chapter Questions

Problem 26P

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