Experiment 5Post-Lab Questions1.Write half-equations for the following conversions.a) CrO₂²- to Cr³+b) S₂03²-to S406²-c) H₂Sto SO4²-d)H₂O₂to 0₂e) H₂O₂to H₂O2.In each case in Question 1, state whether the conversion is an oxidation or a reduction.3.Consider the couples 12/1 and S406²-/S₂O3²-. 1₂ is brown in water-solution, and the other threespecies are colourless. It is found that if a solution of iodine is mixed with excess of the reductantin the S406²/S₂O32- couple, the iodine is reduced to iodide ion, I.a) Which is the reductant in the S406²-/S₂O3²- couple?b) What observation would show that iodine has been reduced by the reductant in theS406²/S₂O3²- couple?c) Write the balanced equation for the reaction described above.9/11

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Write half-equations for the following conversions. a) CrO₂²- to Cr³+ b) S₂03²- to S406²- c) H₂S to SO4²-

Chemistry

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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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