The quantity of antimony in a sample can be determined by an oxidation-reduction titration with an oxidizing agent. A 9.53-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 Sb (aq). The Sb (aq) is completely oxidized by 43.3 mL of a 0.125 M aqueous solution of KBro, (aq). The unbalanced equation for the reaction is H* (aq) + BrO, (aq) + Sb** (aq) Br (aq) + Sb* (aq) + H,O(1) (unbalanced) Calculate the amount of antimony in the sample and its percentage in the ore.

The quantity of antimony in a sample can be determined by an oxidation-reduction titration with an oxidizing agent. A 9.53-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 Sb (aq). The Sb (aq) is completely oxidized by 43.3 mL of a 0.125 M aqueous solution of KBro, (aq). The unbalanced equation for the reaction is H* (aq) + BrO, (aq) + Sb** (aq) Br (aq) + Sb* (aq) + H,O(1) (unbalanced) Calculate the amount of antimony in the sample and its percentage in the ore.

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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Please complete the calculations related to pH, pOH, [H3O+], and [OH-]. Remember there are special rules related to significant digits when working with pH, pOH, [H3O+], and [OH-]. A sample of household vinegar was measured to have a hydronium ion concentration of 5.8 x 10-3mol/L. Determine the pH of the sample. Hand soap is effective at preventing bacterial contamination. Calculate the hydronium ion concentration in a brand of hand soap with a pH of 10.1Human saliva contains enzymes that start the process of digestion. Human saliva typically has a hydroxide ion concentration of 1.2 x 10-8 mol/L. Determine the pOH of saliva. Human blood is slightly basic. Calculate the hydroxide ion concentration in a sample of blood with a pOH of 6.55