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doggerfresh doggerfresh
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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  


Na+ + e



O2(g) + 4H+(aq) + 4e→ 2H2O(l)



2H2O + 2e→ H2 + 2OH



I2 + 2e→ 2I



2I→ I2 + 2e

Textbook 
Chemistry: Atoms First

Chemistry: Atoms First


Edition: 4th
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tpriest1tpriest1
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