Test 2 #7

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Julia Ward 2C
Posts: 27
Joined: Wed Nov 16, 2016 3:03 am

Test 2 #7

Postby Julia Ward 2C » Sat Mar 17, 2018 7:32 pm

Can someone help me out with Test 2 #7?

RenuChepuru1L
Posts: 58
Joined: Thu Jul 27, 2017 3:00 am

Re: Test 2 #7

Postby RenuChepuru1L » Sat Mar 17, 2018 7:40 pm

sure! what about it??

RenuChepuru1L
Posts: 58
Joined: Thu Jul 27, 2017 3:00 am

Re: Test 2 #7

Postby RenuChepuru1L » Sat Mar 17, 2018 7:42 pm

correct me if I'm wrong but you probably did two half equations and added the cell potential. what you have to do instead is find the two half equations that'll give you an overall desired equation, calculate E for both then calculate delta G for both, add those up and have it equal delta g of the final overall reaction, solve for E standard with delta g(what you calculated)=-n(f)(e) and solve for e

RenuChepuru1L
Posts: 58
Joined: Thu Jul 27, 2017 3:00 am

Re: Test 2 #7

Postby RenuChepuru1L » Sat Mar 17, 2018 7:44 pm

sorry thats super confusing basically in steps:
find two half rxns that'll add up to desired overall
find delta g using delta g=-(n)(f)(E) for both
add them up
use that to find the final E cell-- delta g(you added to get this)=(-n)(F)(E) so E=deltaG/(-n)(F)


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