Battery - Battery or Glavanic Cell Worksheet Instructions...

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Battery or Glavanic Cell Worksheet Instructions for building a battery, should you ever become shipwrecked with a case of chemical laboratory supplies. 1. Look up your standard reduction potentials in Table 11.1, page 258 of the textbook. Write out your reduction ½ reactions with the most negative one on top. 2. Your anode will be the top (more negative reduction potential). Your cathode will be on the bottom (more positive reduction potential). 3. E cell = E cathode - E anode 4. Reverse the top (more negative) reaction, because oxidation occurs at the anode. 5. Add the two ½ reactions together such that the electrons cancel out. 6. Put the ½ reactions with the picture of the battery. The anode is negative and will have the top reaction written as an oxidation. The cathode is positive and will have the bottom reaction written as a reduction. 7. The salt bridge cations always migrate to the cathode. The salt bridge anions always migrated to the anode. The cathode always grows as the reaction progresses. The anode always shrinks as the reaction progresses.
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This note was uploaded on 03/30/2010 for the course CH 101 taught by Professor Bigham during the Spring '08 term at N.C. State.

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Battery - Battery or Glavanic Cell Worksheet Instructions...

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