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porous disc

Posted: Sun Feb 23, 2020 12:45 am
by josmit_1D
does a porous disc/wall replace a salt bridge or does it just change the separation of the solutions?

Re: porous disc

Posted: Sun Feb 23, 2020 1:08 am
by WesleyWu_1C
I believe the porous disc is just another way to keep the charges of both cells to be neutral.

Re: porous disc

Posted: Sun Feb 23, 2020 8:31 am
by Ariel Fern 2B
Yes, a porous disk does the same function as the salt bridge: keep the current flowing by preventing charge imbalance. Furthermore, a porous disk does not have the anode and cathode in separate solutions; the ions are in the same solution and the ions are intermixed to prevent the charge imbalance. A salt bridge has separation of the two parts of the cell. Hope this helps!!

Re: porous disc

Posted: Sun Feb 23, 2020 10:58 am
by HuyHa_2H
Yes, they essentially have the same roles of keeping the cells neutral but the only difference is that with a porous disk, you don't place the anode and cathode in different beakers but rather together in the same solution.

Re: porous disc

Posted: Sun Feb 23, 2020 11:48 am
by Catherine Daye 1L
A porous disc doesn’t the same thing as a salt bridge. They both ensure electron flow throughout the system.

Re: porous disc

Posted: Sun Feb 23, 2020 11:50 am
by Sally Qiu 2E
the porous disc has the same effect as a salt bridge as it keeps the charges balances