A sample of KIO3 primary standard solid weighing 0.1195 grams was added to an HCl solution containing excess KI. It requ

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A sample of KIO3 primary standard solid weighing 0.1195 grams was added to an HCl solution containing excess KI. It requ

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A sample of KIO3 primary standard solid weighing 0.1195 grams was added to an HCl
solution containing excess KI. It required 35.75 mL of a sodium thiosulfate (Na2S2O3) solution to reach the ending point in a titration. Calculate the molarity of the Na2S2O3solution, using the overall equation below. (MW of KIO3=214.0g/mol)
​​IO3- + 6 H+ + 6 S2O3-2 → 3 S4O6-2 + I- + 3 H2O
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