A sample of a tin containing ore is dissolved in sulfuric acid. The redox titration reaches the endpoint when 34.60 mL of 0.5560 M triiodide solution has been added. 15 (aq) + Sn2+(aq) → Sn4+ (aq) + 31-(aq) How many moles of triiodide were used in the titration? [?] moles I

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