14.15.c

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Angel Ni 2K
Posts: 50
Joined: Sat Jul 22, 2017 3:01 am

14.15.c

Postby Angel Ni 2K » Sun Feb 18, 2018 11:59 pm

For this question, the overall equation is given as Cd(s) + 2 Ni(OH)3(s) --> Cd(OH)2(s) + Ni(OH)2(s). However, in the cell diagram, there was a KOH. Where did the potassium come from?

Vincent Chiang 1L
Posts: 54
Joined: Fri Sep 29, 2017 7:05 am

Re: 14.15.c

Postby Vincent Chiang 1L » Mon Feb 19, 2018 8:19 am

The KOH is there as a salt bridge to allow for flow of ions.

Paula Dowdell 1F
Posts: 72
Joined: Tue Nov 15, 2016 3:00 am

Re: 14.15.c

Postby Paula Dowdell 1F » Mon Feb 19, 2018 11:26 pm

How do we know that this salt bridge is necessary?


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