Salt Bridges-won't they dissolve?

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Kathryn 1F
Posts: 66
Joined: Fri Sep 28, 2018 12:19 am

Salt Bridges-won't they dissolve?

Postby Kathryn 1F » Sun Feb 24, 2019 9:24 pm

I am confused. how does the salt bridge not just dissolve in the aqueous solutions on either side of the cell, making it useless?

Cole Elsner 2J
Posts: 88
Joined: Fri Sep 28, 2018 12:25 am

Re: Salt Bridges-won't they dissolve?

Postby Cole Elsner 2J » Sun Feb 24, 2019 9:35 pm

The salt bridge isn't actually made up of salt itself. It's tubing with gel inside to provide electrical contact between the anode and the cathode.

Matthew Choi 2H
Posts: 59
Joined: Fri Sep 28, 2018 12:18 am

Re: Salt Bridges-won't they dissolve?

Postby Matthew Choi 2H » Mon Feb 25, 2019 1:52 am

LOL. The salt bridge provides no other purpose than to allow the free flow of ions from each side of the cell to prevent the polarization of one side that would stop the reaction from occurring. It's not made of salt so it doesn't change the concentration of either solution.

deepto_mizan1H
Posts: 65
Joined: Fri Sep 28, 2018 12:16 am

Re: Salt Bridges-won't they dissolve?

Postby deepto_mizan1H » Mon Feb 25, 2019 10:17 am

The salt bridge essentially helps to prevent charge accumulation on either side (which would nullify the battery system). Since it is made out of tubing with gel, it will not chemically interact with the cell. It allows the charges to move, and to keep the cell going.

Jordan Lo 2A
Posts: 85
Joined: Fri Sep 28, 2018 12:25 am

Re: Salt Bridges-won't they dissolve?

Postby Jordan Lo 2A » Mon Feb 25, 2019 10:19 am

A salt bridge is made of ions that flow into the solutions produced by the oxidation/reduction to prevent charge build-up, allowing electrons to continue flowing between the two cells

Karishma_1G
Posts: 67
Joined: Fri Sep 28, 2018 12:18 am

Re: Salt Bridges-won't they dissolve?

Postby Karishma_1G » Mon Feb 25, 2019 1:42 pm

The salt bridge isn't actually made out of salt. It is a tube with ions inside to prevent the charge build-up during the redox reaction. I believe that without a salt bridge, a positive charge would build up on the anode side and a negative charge on the cathode side which would preventing the reaction from occurring.


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