c103-sp10-0602 - Fig. 18.16 2NaCl(l) 2Na(l) + Cl 2 (g) E...

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Chemistry 103 Spring 2010 Today 1. Electrolysis (brief). Announcements 1. Ch. 14-18 OWL homework is active. 2. Final exam on Monday, June 7, 4:30 PM. Chapters 14 – 18. Review sheet posted.
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Chemistry 103 Spring 2010 2 Electrolysis If Eº cell > 0, the process favors products ( Δ Gº<0). 2Na(s) + Cl 2 (g) 2NaCl(s) cell = +4.072 V If Eº cell < 0, we can force the reaction by supplying an electrical current.
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Unformatted text preview: Fig. 18.16 2NaCl(l) 2Na(l) + Cl 2 (g) E cell -4.072 V (note: we have to melt the ionic substance to allow the ions and electrons to flow) Requires significant energy. Similarly, 2H 2 (g) + O 2 (g) 2H 2 O(l) E cell &gt; 0 2H 2 O(l) 2H 2 (g) + O 2 (g) E cell &lt; 0 but we can decompose water and produce the elemental gases by supplying electrical current....
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c103-sp10-0602 - Fig. 18.16 2NaCl(l) 2Na(l) + Cl 2 (g) E...

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