14.11 6th edition, part D

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Tyra Nguyen 4H
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Joined: Fri Sep 28, 2018 12:25 am

14.11 6th edition, part D

Postby Tyra Nguyen 4H » Wed Feb 27, 2019 2:12 pm

4.11 Write the half-reactions and the balanced equation for the cell reaction for each of the following galvanic cells:
(d) Pt(s)|O2(g)|H+(aq)||OH-(aq)|O2(g)|Pt(s)

Are O2(g) and H+(aq) the reactants of the oxidation half-reaction (as seen in solutions manual)? I am not sure how to go about this problem, as I thought that O2(g) is the reactant and H+(aq) is the product.

Ashley Zhu 1A
Posts: 69
Joined: Fri Sep 28, 2018 12:16 am

Re: 14.11 6th edition, part D

Postby Ashley Zhu 1A » Wed Feb 27, 2019 2:34 pm

I think the solution manual is correct in saying that O2 and H+ are the reactants in the oxidation half reaction because there is no way to get H+ ions from O2 gas, so they must react together to form water

Sophia Ding 1B
Posts: 62
Joined: Fri Sep 28, 2018 12:16 am

Re: 14.11 6th edition, part D

Postby Sophia Ding 1B » Wed Feb 27, 2019 3:33 pm

That didn't make too much sense to me either but what Ashley is saying does make sense, as you don't include H2O(l) in cell diagrams and you still do want to separate the 2 different phases!


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