Salt Bridge

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Lindsey Chheng 1E
Posts: 110
Joined: Fri Aug 30, 2019 12:16 am

Salt Bridge

Postby Lindsey Chheng 1E » Sat Feb 22, 2020 4:14 pm

I know a salt bridge is there to keep both solutions neutral, but what exactly is going on inside the salt bridge that allows it to contribute to the galvanic cell?

claudia_1h
Posts: 111
Joined: Fri Aug 09, 2019 12:16 am

Re: Salt Bridge

Postby claudia_1h » Sat Feb 22, 2020 4:16 pm

A salt bridge allows for the flow of the negative ions that aren't participating in the redox reaction. Remember that we cannot just put aqueous ions in solution, they must dissociate from a solid salt. Those ions can make the charge unbalanced, so having a salt bridge essentially corrects that.

MaggieHan1L
Posts: 100
Joined: Thu Jul 11, 2019 12:17 am

Re: Salt Bridge

Postby MaggieHan1L » Sat Feb 22, 2020 4:39 pm

It lets ions flow freely and thus the reaction won't be influenced by all of the free ions.

nehashetty_2G
Posts: 102
Joined: Thu Jul 25, 2019 12:15 am

Re: Salt Bridge

Postby nehashetty_2G » Sat Feb 22, 2020 5:09 pm

A salt bridge comes is significant to a galvanic cell because it eases the charge buildup. It allows the ions to transfer when which allows the solutions to stay neutral overtime.

005206171
Posts: 107
Joined: Wed Sep 18, 2019 12:20 am

Re: Salt Bridge

Postby 005206171 » Sat Feb 22, 2020 5:29 pm

nehashetty_2G wrote:A salt bridge comes is significant to a galvanic cell because it eases the charge buildup. It allows the ions to transfer when which allows the solutions to stay neutral overtime.


Why do the solutions need to stay neutral?

Sartaj Bal 1J
Posts: 101
Joined: Thu Jul 25, 2019 12:17 am

Re: Salt Bridge

Postby Sartaj Bal 1J » Sat Feb 22, 2020 7:16 pm

005206171 wrote:
nehashetty_2G wrote:A salt bridge comes is significant to a galvanic cell because it eases the charge buildup. It allows the ions to transfer when which allows the solutions to stay neutral overtime.


Why do the solutions need to stay neutral?


The solutions need to stay neutral because if the charge builds up, the transfer of electrons from one reaction beaker to another will stop.

Keya Jonnalagadda 1A
Posts: 50
Joined: Mon Jun 17, 2019 7:24 am

Re: Salt Bridge

Postby Keya Jonnalagadda 1A » Sat Feb 22, 2020 8:17 pm

In order to maintain electron flow between the anode and cathode, the sites need to be neutrally charged. They are not neutrally charged naturally, because ions are removed from either side as the electrons flow. Thus, the salt bridge allows anions to flow to the anode and cations to flow to the cathode to replace the removed ions and restore neutral charge.

Tahlia Mullins
Posts: 105
Joined: Thu Jul 25, 2019 12:15 am

Re: Salt Bridge

Postby Tahlia Mullins » Sat Feb 22, 2020 9:34 pm

In order to counteract the build up of charge in a galvanic cell, the salt bridge essentially contributes free ions that will not interfere with the redox reaction that is already taking place, it is simply meant to neutralize each side.

Andres Merlos 2L
Posts: 46
Joined: Wed Sep 18, 2019 12:17 am

Re: Salt Bridge

Postby Andres Merlos 2L » Sat Feb 22, 2020 9:56 pm

The salt bridge is needed to allow ions to flow freely, which will free any charge buildup. It is important for this to occur, because it allows the flow of electrons to be maintained.

Callum Guo 1H
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Joined: Fri Aug 02, 2019 12:15 am
Been upvoted: 1 time

Re: Salt Bridge

Postby Callum Guo 1H » Sat Feb 22, 2020 10:36 pm

It is used to maintain a charge balance

Nicholas_Gladkov_2J
Posts: 125
Joined: Sat Aug 17, 2019 12:17 am

Re: Salt Bridge

Postby Nicholas_Gladkov_2J » Sat Feb 22, 2020 11:07 pm

Lindsey Chheng 1E wrote:I know a salt bridge is there to keep both solutions neutral, but what exactly is going on inside the salt bridge that allows it to contribute to the galvanic cell?


In order for the two solutions of the Galvanic cell to stay neutral (because there is an exchange of e-), the ions (for example Cl-) move from the right to the left (cathode to anode).


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