The amount of I3- (aq) in a solution can be determined by titration with a solution containing a known concentration of S2O32- (aq) (thiosulfate ion). The determination is based on the net ionic equation 2S2O32- (aq) + I3- (aq) yields to S4O62- (aq) + 3I- (aq)Given that it requires 34.2 mL of 0.500 M Na2S2O3 (aq) to titrate a 20.0 mL sample of I3- (aq), calculate the molarity of I3- (aq) in the solution.

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Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter4: Reactions In Aqueous Solution

Section: Chapter Questions

Problem 53QAP: The molarity of iodine in solution can be determined by titration with arsenious acid, H3AsO4. The...

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The amount of I₃^-(aq) in a solution can be determined by titration with a solution containing a known concentration of S₂O₃^2- (aq) (thiosulfate ion). The determination is based on the net ionic equation

2S₂O₃^2-(aq) + I₃^- (aq) yields to S₄O₆^2- (aq) + 3I^- (aq)

Given that it requires 34.2 mL of 0.500 M Na₂S₂O₃ (aq) to titrate a 20.0 mL sample of I₃^- (aq), calculate the molarity of I₃^- (aq) in the solution.

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