Both silver(I) bromide and silver(I) iodide are slightly soluble salts, with Ksp values at 25°C of 5.40×10-13 and 8.30×10-17, respectively. A solution of silver(I) nitrate is added to a solution that is 0.434 M  in bothBr– andI–. What are the minimum Ag+ concentrations required for precipitation of AgBr and of AgI to occur? AgBr     mol/L    AgI     mol/L

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Chapter1: Chemical Foundations
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Both silver(I) bromide and silver(I) iodide are slightly soluble salts, with Ksp values at 25°C of 5.40×10-13 and 8.30×10-17, respectively. A solution of silver(I) nitrate is added to a solution that is 0.434  in bothBr andI.

What are the minimum Ag+ concentrations required for precipitation of AgBr and of AgI to occur?


AgBr     mol/L   


AgI     mol/L 
 
Which will precipitate first?

Choose one
 
AgBr
 
AgI 
 
 
What percentage of the halide ion that is precipitated first remains in solution before the second begins to precipitate?

     %   

 

 
If complete separation is defined as there being less than 0.10% of a particular ion left in solution, does this method completely separate Br from I?

Choose one:
Yes 
No 
Cannot be determined
 
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