A solution of sodium thiosulfate, Na2S2O3, is 0.5522 M. 8.50 mL of this solution reacts with 39.03 mL of I2 solution. What is the molarity of the I2 solution?2(Na2S2O3) + I2↔Na2S4O6 + 2(NaI) 37.98 mL of the I2 solution from above is required to titrate a sample containing As2O3. Calculate the mass of As2O3 (197.8 g/mol) in the sample.As2O3 + 5(H2O) + 2I2 → 2(H3AsO4) + 4HI

1. Molarity of I2 solution = 0.06013 M . 2. Mass of As2O3 in the sample = 0.2358 g

Answered: A solution of sodium thiosulfate,…

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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A solution of sodium thiosulfate, Na₂S₂O₃, is 0.5522 M. 8.50 mL of this solution reacts with 39.03 mL of I₂ solution. What is the molarity of the I₂ solution?

2(Na₂S₂O₃) + I₂↔Na₂S₄O₆ + 2(NaI)

37.98 mL of the I₂ solution from above is required to titrate a sample containing As₂O₃. Calculate the mass of As₂O₃ (197.8 g/mol) in the sample.

As₂O₃ + 5(H₂O) + 2I₂ → 2(H₃AsO₄) + 4HI

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