MnO4−(aq) + 8H+(aq) + 5e− Mn2+(aq) + 4H2O(l)+1.51 VCr2O72−(aq) + 6e− 2Cr3+(aq) + 7H2O(l)+1.33 VCu2+(aq) + 2e− Cu(s)+0.34 VPb2+(aq) + 2e− Pb(s)−0.13 VFe2+(aq) + 2e− Fe(s)−0.44 VAl3+(aq) + 3e− Al(s)−1.66 V Let's say you wanted to create a voltaic cell that provide voltage more than 2 V. How many cells can you made?

In an electrochemical cell, the electrode with higher standard reduction potential acts as a cathode…

Answered: MnO4−(aq) + 8H+(aq) + 5e− Mn2+(aq) +…

Chemistry by OpenStax (2015-05-04)

1st Edition

ISBN:9781938168390

Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Chapter18: Representative Metals, Metalloids, And Nonmetals

Section: Chapter Questions

Problem 110E: Physiological saline concentration—that is, the sodium chloride concentration in our bodies—is...

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MnO₄⁻(aq) + 8H⁺(aq) + 5e⁻ Mn²⁺(aq) + 4H₂O(l)	+1.51 V
Cr₂O₇²⁻(aq) + 6e⁻ 2Cr³⁺(aq) + 7H₂O(l)	+1.33 V
Cu²⁺(aq) + 2e⁻ Cu(s)	+0.34 V
Pb²⁺(aq) + 2e⁻ Pb(s)	−0.13 V
Fe²⁺(aq) + 2e⁻ Fe(s)	−0.44 V
Al³⁺(aq) + 3e⁻ Al(s)	−1.66 V

Let's say you wanted to create a voltaic cell that provide voltage more than 2 V. How many cells can you made?

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