Electrode Mass

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Sofia Ban
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Joined: Fri Sep 28, 2018 12:25 am

Electrode Mass

Postby Sofia Ban » Sat Mar 14, 2020 4:28 pm

Can someone explain the effect of changing the mass of the electrode on the cell potential?

ShravanPatel2B
Posts: 100
Joined: Fri Aug 30, 2019 12:18 am

Re: Electrode Mass

Postby ShravanPatel2B » Sat Mar 14, 2020 4:32 pm

Changing the concentration of one solution in the cell will increase the voltage potential of the cell because you are putting the system further out of equilibrium. Because the concentration in only one side of the cell has changed, the concentration gradient across both sides of the cell increases.

Jessica Chen 2C
Posts: 103
Joined: Thu Jul 11, 2019 12:17 am

Re: Electrode Mass

Postby Jessica Chen 2C » Sat Mar 14, 2020 10:10 pm

Changing the mass of the electrode shouldn’t affect cell potential, it will just affect the lifespan of the electrode.

Katie Kyan 2K
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Re: Electrode Mass

Postby Katie Kyan 2K » Sat Mar 14, 2020 10:44 pm

Changing the mass of the electrode will not affect the cell potential.

Bryce Ramirez 1J
Posts: 120
Joined: Sat Aug 24, 2019 12:16 am

Re: Electrode Mass

Postby Bryce Ramirez 1J » Sat Mar 14, 2020 11:17 pm

Changing the mass of the electrode, whether it be the cathode or the anode, will not affect the Ecell. It could be doubled, halved, or changed by any factor; the overall change will have no affect on the Ecell.

gconcha
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Re: Electrode Mass

Postby gconcha » Sun Mar 15, 2020 4:58 am

I think the conditions are different depending on whether the cell in question is a galvanic cell or a concentration cell. If it's a concentration cell, I think the increased mass might ((key word: MIGHT) change how much of the electrode is being dissolved into the solution, but otherwise it shouldn't matter at all.

Connor Chappell 2B
Posts: 59
Joined: Wed Feb 20, 2019 12:16 am

Re: Electrode Mass

Postby Connor Chappell 2B » Sun Mar 15, 2020 5:54 am

The wording is key. if the concentration of one of the electrode solutions is increased, then the concentrations between the two cells are more different (i.e. further away from equilibrium). However, increasing the mass of the electrode does not necessarily increase the concentration, in fact, increasing the mass of either electrode has no effect on the overall cell potential, while increasing or decreasing concentration does change the cell potential.

ValerieChavarin 4F
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Joined: Wed Sep 18, 2019 12:18 am

Re: Electrode Mass

Postby ValerieChavarin 4F » Sun Mar 15, 2020 7:00 am

Changing the concentration of the electrode might result in an increase, however for the mass it should not affect cell potential.

Alice Ma 2K
Posts: 52
Joined: Wed Nov 13, 2019 12:26 am

Re: Electrode Mass

Postby Alice Ma 2K » Sun Mar 15, 2020 10:39 pm

Changing the mass of the electrode won't change the cell potential. Changing the concentration of the solution would result in an increase in the cell potential.

Aarushi Solanki 4F
Posts: 107
Joined: Sat Jul 20, 2019 12:17 am

Re: Electrode Mass

Postby Aarushi Solanki 4F » Sun Mar 15, 2020 10:42 pm

Changing the size of the electrode doesn't change cell potential, but it will change the "battery" life.

SVajragiri_1C
Posts: 115
Joined: Thu Jul 11, 2019 12:16 am

Re: Electrode Mass

Postby SVajragiri_1C » Sun Mar 15, 2020 10:45 pm

Because electrode mass is always in excess, changing the mass doesn't do anything to cell potential.


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