The quantity of antimony in a sample can be determined by an oxidation-reduction titration with an oxidizing agent. A 9.01 g sample of stibnite, an ore of antimony, is dissolved in hot, concentrated HCl(aq) and passed over a reducing agent so that all the antimony is in the form Sb³+ (aq). The Sb³+ (aq) is completely oxidized by 39.3 mL of a 0.130 M aqueous solution of KBrO, (aq). The unbalanced equation for the reaction is BrO, (aq) + Sb¹+ (aq) → Br (aq) + Sb³+ (aq) (unbalanced) Calculate the amount of antimony in the sample and its percentage in the ore. mass of antimony: percentage of antimony:

The quantity of antimony in a sample can be determined by an oxidation-reduction titration with an oxidizing agent. A 9.01 g sample of stibnite, an ore of antimony, is dissolved in hot, concentrated HCl(aq) and passed over a reducing agent so that all the antimony is in the form Sb³+ (aq). The Sb³+ (aq) is completely oxidized by 39.3 mL of a 0.130 M aqueous solution of KBrO, (aq). The unbalanced equation for the reaction is BrO, (aq) + Sb¹+ (aq) → Br (aq) + Sb³+ (aq) (unbalanced) Calculate the amount of antimony in the sample and its percentage in the ore. mass of antimony: percentage of antimony:

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter17: Electrochemistry And Its Applications

Section: Chapter Questions

Problem 33QRT: Consider these half-reactions: (a) Which is the weakest oxidizing agent? (b) Which is the strongest...

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