Chemistry, 11.04.2020 03:43 amulets2274
The quantity of antimony in a sample can be determined by an oxidation-reduction titration with an oxidizing agent. A 5.13 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 27.7 mL of a .105 M aqueous solution of KBrO3(aq). The unbalanced equation for the reaction is:.
BrO-3 (aq) + Sb3+(aq)--> Br-(aq)+ Sb5+(aq (unbalanced)
Calculate the amount of antimony in the sample (grams) and its percentage in the ore (%)
Answers: 3
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The quantity of antimony in a sample can be determined by an oxidation-reduction titration with an o...
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