Saturday
April 19, 2014

Homework Help: chemistry

Posted by Anonymous on Friday, February 24, 2012 at 5:32pm.

The quantity of antimony in a sample can be determined by an oxidation-reduction titration with an oxidizing agent. A 6.35-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 0.130 M aqueous solution of KBrO3(aq). The unbalanced equation for the reaction is
BrO3^- + Sb^3+= Br^- + Sb^5+

Calculate the amount of antimony in the sample and its percentage in the ore.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chemistry - A sample of an oxide of antimony (Sb) contained 25.0 g of antimony ...
Chemistry - A sample of an oxide of antimony (Sb) contained 51.5 g of antimony ...
URGENT! chemistry- percentage yield - heating an ore of antimony sulfide in the ...
chem - A sample of an oxide of antimony (Sb) contained 51.5 g of antimony ...
chemistry - The quantity of antimony in an ore can be determined by an oxidation...
CHEMISTRY - 40g of antimony combine with 80g of oxygen to form an oxide of ...
Chemistry - The quantity of antimony in an ore can be determined by an oxidation...
Chemistry - The quantity of antimony in an ore can be determined by an ...
chemistry - you measure out a 15g sample NaCl. the quantity of this sample is ...
Chemistry - A rock sample contains only Sb2S3 and FeS. If 835g of the sample ...

Search
Members