Salt Bridge

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taywebb
Posts: 60
Joined: Fri Sep 28, 2018 12:15 am

Salt Bridge

Postby taywebb » Mon Feb 25, 2019 7:51 pm

Do galvanic cells have to have a salt bridge?

Brandon_Tran_2E
Posts: 63
Joined: Fri Sep 28, 2018 12:23 am

Re: Salt Bridge

Postby Brandon_Tran_2E » Mon Feb 25, 2019 8:44 pm

Salt bridge or porous disc to allow negative ions to flow back to the anode side or else the reaction will stop.

Rimsha Hussaini 1A
Posts: 31
Joined: Fri Sep 28, 2018 12:20 am

Re: Salt Bridge

Postby Rimsha Hussaini 1A » Mon Feb 25, 2019 9:01 pm

Yes, galvanic cells must have a salt bridge or a porous disk for the reason provided by the previous reply. The electron transfer from one reaction beaker to another will stop due to charge buildup, but the salt bridge or the porous disk will allow for ions to transfer and for the two solutions to remain neutral. This in turn allows the the electron transfer to continue.


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