salt bridge vs porous disk

Moderators: Chem_Mod, Chem_Admin

905084274
Posts: 42
Joined: Fri Sep 28, 2018 12:22 am

salt bridge vs porous disk

Postby 905084274 » Wed Feb 27, 2019 9:49 am

What happens if there is no salt bridge in a galvanic cell? also what is the difference between a salt bridge and a porous disk? How does that affect the lines you draw

mcredi
Posts: 63
Joined: Fri Sep 28, 2018 12:16 am

Re: salt bridge vs porous disk

Postby mcredi » Wed Feb 27, 2019 10:09 am

Without the salt bridge, the solution in the anode compartment would become positively charged and the solution in the cathode compartment would become negatively charged,because of the charge imbalance,the electrode reaction would quickly come to a halt. The two basically have the same purpose

Andie Jian 1D
Posts: 69
Joined: Fri Sep 28, 2018 12:17 am
Been upvoted: 1 time

Re: salt bridge vs porous disk

Postby Andie Jian 1D » Wed Feb 27, 2019 10:20 am

Also, when drawing the cell diagram, a porous disk would just be a single line rather than a double line between the two half-cells.

Sarah Fatkin 4I
Posts: 71
Joined: Fri Sep 28, 2018 12:27 am

Re: salt bridge vs porous disk

Postby Sarah Fatkin 4I » Wed Feb 27, 2019 1:01 pm

They basically serve the same purpose except that that with the salt bridge, there are two beakers connected with a tube filled with gel that allows the salts to move, whereas with the porous disk, the salts can transport to either side of the disk because it's porous. Salt bridges are represented with double lines and porous disks are represented with single lines. Hope this helps!

Yiting_Gong_4L
Posts: 69
Joined: Fri Sep 28, 2018 12:25 am

Re: salt bridge vs porous disk

Postby Yiting_Gong_4L » Wed Feb 27, 2019 2:34 pm

the salt bridge and porous disk have the same function which is to balance out both sides of the beaker with salts. salt bridges are represented with two lines and porous only has one.


Return to “Balancing Redox Reactions”

Who is online

Users browsing this forum: No registered users and 2 guests