The quantity of antimony in a sample can be determined by an oxidation–reduction titration with an oxidizing agent. A 5.45 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 23.8 mL of a 0.130 M aqueous solution of KBrO₃(aq). The unbalanced equation for the reaction is:\[ \text{BrO}_3^- (aq) + \text{Sb}^{3+} (aq) \rightarrow \text{Br}^- (aq) + \text{Sb}^{5+} (aq) \]Calculate the amount of antimony in the sample and its percentage in the ore.- Mass of antimony: ______ g- Percentage of antimony: ______ %Note: The task involves balancing the chemical equation and using stoichiometry to determine the mass and percentage of antimony in the original ore sample.

Mass of ore = 5.45 g Molecular weight of Sb = 121.76 g/mol

The quantity of antimony in a sample can be determined by an oxidation-reduction titration with an oxidizing agent. A 5.45 g sample of stibnite, an ore of antimony, is dissolved in hot, concentrated HCI(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 23.8 mL of a 0.130 M aqueous solution of KBRO, (aq). The unbalanced equation for the reaction is BrO (aq) + Sb³+(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 5.45 g sample of stibnite, an ore of antimony, is dissolved in hot, concentrated HCI(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 23.8 mL of a 0.130 M aqueous solution of KBRO, (aq). The unbalanced equation for the reaction is BrO (aq) + Sb³+(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

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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