A solution of sodium thiosulfate was standardized by dissolving 0.1210 g KIO3 (MM=214) in water, adding a large excess of KI, and acidifying with HCI. The liberated iodine required 41.64 mL of the thiosulfate to decolorize the starch/iodine complex. Calculate the molarity of the Na₂S₂O3.
A solution of sodium thiosulfate was standardized by dissolving 0.1210 g KIO3 (MM=214) in water, adding a large excess of KI, and acidifying with HCI. The liberated iodine required 41.64 mL of the thiosulfate to decolorize the starch/iodine complex. Calculate the molarity of the Na₂S₂O3.
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter21: Chemistry Of The Main-group Elements
Section: Chapter Questions
Problem 21.105QP
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A solution of sodium thiosulfate was standardized by dissolving 0.1210 g KIO3 (MM=214) in water, adding a large excess of KI, and acidifying with HCI. The liberated iodine required 41.64 mL of the thiosulfate to decolorize the starch/iodine complex. Calculate the molarity of the Na₂S₂O3.
|
0.0721 M |
||
|
0.239 M |
||
|
0.1234 M |
||
|
0.0815 M |
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