Map Due Date: Points Possi Grade Categ Sapling Learning A galvanic (voltaic) cel

Question

Map Due Date: Points Possi Grade Categ Sapling Learning A galvanic (voltaic) cell consists of an electrode composed of zinc in a 1.0 M zinc ion solution and another electrode composed of silver in a 1.0 M silver ion solution, connected by a salt b standard potential for this cell at 25 °C. Standard reduction potentials can be found Calculate the Policies: Number You can che You can vie give up on a You can kee until you ge You lose 5% answer in VO attempt at t cell eTextbook Help With O Web Help Previous ( Give Up & View Solution O Check Answer Next Exit Technical Hint

Explanation / Answer

Remember that each species will have a specific reduction potential. Remember that this is, as the name implies, a potential to reduce. We use it to compare it (numerical) with other species.

Note that the basis if 2H+ + 2e- -> H2(g) reduction. Therefore E° = 0 V

All other samples are based on this reference.

Find the Reduction Potential of each reaction (Tables)

Ag+ + e Ag(s) +0.7996

Zn2+ + 2 e Zn(s) 0.7618

The most positive has more potential to reduce, it will be reduced

The most negative will be oxidized, since it will donate it selectrons

For total E°cell potential:

E°cell = Ered – Eox

Eox = -Ered of the one being oxidized

E°cell = 0.7996 - - 0.7618 = 1.5614 V

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