Concentration Cells

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EvanWang
Posts: 101
Joined: Sat Sep 07, 2019 12:16 am

Concentration Cells

Postby EvanWang » Tue Feb 25, 2020 11:33 am

Can concentration cells be made with a salt bridge? Or can they only be made with a porous disk?

Kassidy Ford 1I
Posts: 103
Joined: Sat Aug 17, 2019 12:16 am
Been upvoted: 1 time

Re: Concentration Cells

Postby Kassidy Ford 1I » Tue Feb 25, 2020 12:19 pm

I believe we use a porous disk so that ions can move through to either side until their concentrations reach equilibrium. I don't think this would happen if a salt bridge was used

105335337
Posts: 103
Joined: Sat Aug 24, 2019 12:15 am

Re: Concentration Cells

Postby 105335337 » Tue Feb 25, 2020 2:13 pm

Salt bridges cannot be used because since it is the same molecules on both sides, the salt bridge wouldn't move anything. Porous disks allows for the higher concentration to diffuse into the lower.


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