2. A gas canister containing 5.25 cubic meters of a mixture of gases at 8 deg C and 0.950 bar from an Arctic expedition was brough back by a team of specialists in atmospheric science to determine the amount of ozone remaining in the polar regions. One of their members, Engr. Arcilla was tasked with bubbling the mixture of gases through an excess amount an aqueous solution of potassium iodide to reduce the ozone to oxygen gas and oxidize the iodine ion to triiodide ion. (a.) Write the balanced redox reaction between ozone and potassium iodide. Exclude any spectator ion in the final balanced reaction (Assume Basic Medium) (b.) Upon reacting, the mixture is then titrated with 71.8 mL of 0.517 M of sodium thiosulfate, reducing all of the triiodide ion back to iodine ion and oxidizing the thiosulfate ion to tetrathionate (S40,²). What is the mole fraction of ozone in the gas canister sample?

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2. A gas canister containing 5.25 cubic meters of a mixture of gases at 8 deg C and 0.950 bar from an Arctic expedition
was brough back by a team of specialists in atmospheric science to determine the amount of ozone remaining in the polar
regions. One of their members, Engr. Arcilla was tasked with bubbling the mixture of gases through an excess amount an
aqueous solution of potassium iodide to reduce the ozone to oxygen gas and oxidize the iodine ion to triiodide ion.
(a.) Write the balanced redox reaction between ozone and potassium iodide. Exclude any spectator ion in the final
balanced reaction (Assume Basic Medium)
(b.) Upon reacting, the mixture is then titrated with 71.8 mL of 0.517 M of sodium thiosulfate, reducing all of the triiodide
ion back to iodine ion and oxidizing the thiosulfate ion to tetrathionate (S,0,2). What is the mole fraction of ozone in the
gas canister sample?
Transcribed Image Text:2. A gas canister containing 5.25 cubic meters of a mixture of gases at 8 deg C and 0.950 bar from an Arctic expedition was brough back by a team of specialists in atmospheric science to determine the amount of ozone remaining in the polar regions. One of their members, Engr. Arcilla was tasked with bubbling the mixture of gases through an excess amount an aqueous solution of potassium iodide to reduce the ozone to oxygen gas and oxidize the iodine ion to triiodide ion. (a.) Write the balanced redox reaction between ozone and potassium iodide. Exclude any spectator ion in the final balanced reaction (Assume Basic Medium) (b.) Upon reacting, the mixture is then titrated with 71.8 mL of 0.517 M of sodium thiosulfate, reducing all of the triiodide ion back to iodine ion and oxidizing the thiosulfate ion to tetrathionate (S,0,2). What is the mole fraction of ozone in the gas canister sample?
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