3. Consider the couples I2/I¯ and S4O6²/S2O3²-. I2 is brown in water-solution, and the other three species are colourless. It is found that if a solution of iodine is mixed with excess of the reductant in the S4O6-/S203²- couple, the iodine is reduced to iodide ion, F. a) Which is the reductant in the S406-/S203²- couple? b) What observation would show that iodine has been reduced by the reductant in the S,06/S203- couple? c) Write the balanced equation for the reaction described above.
3. Consider the couples I2/I¯ and S4O6²/S2O3²-. I2 is brown in water-solution, and the other three species are colourless. It is found that if a solution of iodine is mixed with excess of the reductant in the S4O6-/S203²- couple, the iodine is reduced to iodide ion, F. a) Which is the reductant in the S406-/S203²- couple? b) What observation would show that iodine has been reduced by the reductant in the S,06/S203- couple? c) Write the balanced equation for the reaction described above.
Principles of Instrumental Analysis
7th Edition
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Chapter14: Applications Of Ultraviolet-visible Molecular Absorption Spectrometry
Section: Chapter Questions
Problem 14.7QAP: A 3.03-g petroleum specimen was decomposed by wet ashing and subsequently diluted to 500 mL in a...
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![Consider the couples l2/1¯ and S4O6²/S2O3?-. 2 is brown in water-solution, and the other three
species are colourless. It is found that if a solution of iodine is mixed with excess of the reductant
3.
in the S.O6-/S203?- couple, the iodine is reduced to iodide ion, r.
a) Which is the reductant in the S406-/S2032- couple?
b) What observation would show that iodine has been reduced by the reductant in the
S406-/S203- couple?
c)
Write the balanced equation for the reaction described above.
9/ 11](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7ce63ba5-9e4f-4921-9d00-13b1b9fd2994%2F6ade12ad-d2e6-4972-8cb0-56c319485f8c%2Flep5dhc_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Consider the couples l2/1¯ and S4O6²/S2O3?-. 2 is brown in water-solution, and the other three
species are colourless. It is found that if a solution of iodine is mixed with excess of the reductant
3.
in the S.O6-/S203?- couple, the iodine is reduced to iodide ion, r.
a) Which is the reductant in the S406-/S2032- couple?
b) What observation would show that iodine has been reduced by the reductant in the
S406-/S203- couple?
c)
Write the balanced equation for the reaction described above.
9/ 11
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