calculate the cell potent x ProQuest Ebook central x Mercorpsicorporat Standard

Question

calculate the cell potent x ProQuest Ebook central x Mercorpsicorporat Standard Potentials Ch X ng.com/ibiscms/modlibis/view.php?id-2883820 Sapung Learning Calculate the oel potential for the following reaction as written at 25.00 c, given that IM 1.087o Mand Fe 1.00200 M. Standard reduction potensals can be found bere. 0.05 O Previous Give up & view solution Try Again 0 Next AExt Ex RT E-E concentrations over reactant concentraticns Note that n is sometimes symbolized as v, or zin some textbooks. about us careen partners privarypolicy terms of use contact us help MacBook Air

Explanation / Answer

    Mg -----------> Mg+2 (aq) + 2e-        E0 = 2.38v

   Fe+2(aq) + 2e- -------. Fe(s)           E0 = -0.41v

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Mg(s) + Fe+2 (aq) --------> Mg+2 (aq) + Fe(s)   E0 cell = 1.97v

   n = 2

Ecell   = E0 cell - 0.0592/n logQ

              = 1.97-0.0592/2 log[Mg+2]/[Fe+2]

              = 1.97-0.0296log0.87/0.02

               = 1.97-0.0296*1.6384   = 1.9215V

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