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) ⟶ S4O62−(aq) + 3I−(aq) Given that it requires 32.1 mL of 0.490 M Na2S2O3(aq) to titrate a 20.0 mL sample of I3–(aq), calculate the molarity of I3–(aq) in the solution.

Given, Molarity of Na2S2O3(aq) = 0.490 M = 0.490 mol/L Volume of Na2S2O3(aq) = 32.1 mL = 0.0321 L…

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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

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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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 S₂O₃²⁻(aq) (thiosulfate ion). The determination is based on the net ionic equation:

2S₂O₃^2–(aq) + I₃^–(aq) ⟶ S₄O₆²⁻(aq) + 3I⁻(aq)

Given that it requires 32.1 mL of 0.490 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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