E) In anoxic conditions (e.g. Ен= -0.3 V and pH=8) trace metals form very insoluble sulfides. Would it make sense to treat water to anoxic conditions to eliminate dissolved Hg? 1. What is the balance of sulfates/sulfides species? 2. Make a Pourbaix diagram for sulfate/sulfide species. 3. What other minerals can precipitate? (Hint: use the concentration of sulfides computed in the previous step, recompile the matrix using S²- and without e¯ and check for precipitation Hg + S minerals)

E) In anoxic conditions (e.g. Ен= -0.3 V and pH=8) trace metals form very insoluble sulfides. Would it make sense to treat water to anoxic conditions to eliminate dissolved Hg? 1. What is the balance of sulfates/sulfides species? 2. Make a Pourbaix diagram for sulfate/sulfide species. 3. What other minerals can precipitate? (Hint: use the concentration of sulfides computed in the previous step, recompile the matrix using S²- and without e¯ and check for precipitation Hg + S minerals)

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter6: The Systematic Approach To Equilibria: Solving Many Equations

Section: Chapter Questions

Problem 12P

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