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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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doggerfresh doggerfresh
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3 months ago
What is the half-reaction that occurs at the cathode during the electrolysis of an aqueous sodium iodide solution?
Half-ReactionE° (V)
 2H2O( l) + 2 e–→ H2( g) + 2OH–( aq)–0.83  
 O2( g) + 4H+( aq) + 4 e–→ 2H2O( l)+1.23  
 Na+( aq) +  e–→ Na( s)–2.71  
 I2( s) + 2 e–→ 2I–( aq)+0.53  


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Na+ + e–→



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O2(g) + 4H+(aq) + 4e–→ 2H2O(l)



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2H2O + 2e–→ H2 + 2OH–



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I2 + 2e–→ 2I–



▸

2I–→ I2 + 2e–

Textbook 
Chemistry: Atoms First

Chemistry: Atoms First


Edition: 4th
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tpriest1tpriest1
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