A solution of sodium thiosulfate was standardized by dissolving 0.1310 g KIO3 in water, adding a large excess of KI, and acidifying with HCI. The liberated iodine required 42.64 ml of the thiosulfate solution to decolorize the blue starch/iodine complex. Calculate the molar concentration of the Na,S203. 103" (aq) + I (ag) 12 (s) I2 (s) + S2032 (ag) I (ag) + S4O6? (ag) MM: KIO3 = 214.00 12 = 253.81 NazS203 = 158.11

A solution of sodium thiosulfate was standardized by dissolving 0.1310 g KIO3 in water, adding a large excess of KI, and acidifying with HCI. The liberated iodine required 42.64 ml of the thiosulfate solution to decolorize the blue starch/iodine complex. Calculate the molar concentration of the Na,S203. 103" (aq) + I (ag) 12 (s) I2 (s) + S2032 (ag) I (ag) + S4O6? (ag) MM: KIO3 = 214.00 12 = 253.81 NazS203 = 158.11

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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