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Parsia Vazirnia 2L
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Joined: Fri Jul 22, 2016 3:00 am


Postby Parsia Vazirnia 2L » Tue Feb 07, 2017 8:02 pm

Can someone explain number 43 in the homework? I do not understand the explanation given in the beginning of the problem in the solutions manual

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Re: 14.43

Postby Chem_Mod » Tue Feb 07, 2017 11:36 pm

When constructing the cell, you have to consider what half reactions give the overall cell a positive potential. Hydrogen cells have a potential of zero, so the tin is either being reduced or oxidized to yield a positive voltage. Based on that, you then use the Nernst equation to determine the concentration of H+ in solution and calculate the pH from that value.

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