Cell reactions

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Tiffany Cao 1D
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Joined: Fri Sep 29, 2017 7:03 am
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Cell reactions

Postby Tiffany Cao 1D » Sun Feb 18, 2018 3:43 pm

When there is no salt bridge, how do we know which element gets reduced and oxidized. In practice example 14.4 on page 576(not the actual homework problems), I don't understand how they assumed the reduction or oxidation of the half reactions.

SPandya1F
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Re: Cell reactions

Postby SPandya1F » Sun Feb 18, 2018 5:18 pm

For Example 14.4, we know Hg2Cl2 is the element that gets reduced because the right side of the cell diagram corresponds to reduction.
H2 is getting oxidized because the left side of the cell diagram corresponds to oxidation.

DamianW
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Joined: Fri Sep 29, 2017 7:06 am

Re: Cell reactions

Postby DamianW » Sun Feb 18, 2018 8:15 pm

Will it always be left/right ?

Kevin Ru 1D
Posts: 50
Joined: Thu Jul 13, 2017 3:00 am

Re: Cell reactions

Postby Kevin Ru 1D » Sun Feb 18, 2018 8:38 pm

Yes. Generally speaking, the left side of the cell diagram will correspond to the anode (oxidation) while the right side will correspond to the cathode (reduction). Hope that helps!


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