3.20 grams of KIO3 (RMM = 214) were dissolved in 500 cm³ water. A 25 cm³ aliquot was pipetted into a flask and excess Kl and sulfuric acid were added. The resulting solution was titrated with a Na₂S₂O3 solution, which gave a titre volume of 18.20 cm³. What is the molarity of the Na₂S₂O3 solution? Select one: O a. 0.247 M O b. 0.041 M OC. 0.083 M Od. 0.124 M

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3.20 grams of KIO3 (RMM = 214) were dissolved in 500 cm³ water. A 25 cm³ aliquot was pipetted into a
flask and excess Kl and sulfuric acid were added. The resulting solution was titrated with a Na₂S₂O3
solution, which gave a titre volume of 18.20 cm³.
What is the molarity of the Na₂S₂O3 solution?
Select one:
O a. 0.247 M
Ob. 0.041 M
Oc. 0.083 M
Od. 0.124 M
Transcribed Image Text:3.20 grams of KIO3 (RMM = 214) were dissolved in 500 cm³ water. A 25 cm³ aliquot was pipetted into a flask and excess Kl and sulfuric acid were added. The resulting solution was titrated with a Na₂S₂O3 solution, which gave a titre volume of 18.20 cm³. What is the molarity of the Na₂S₂O3 solution? Select one: O a. 0.247 M Ob. 0.041 M Oc. 0.083 M Od. 0.124 M
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