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Topic: Cell Potentials  (Read 1369 times)

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Offline bradenator

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Cell Potentials
« on: June 14, 2021, 10:53:59 PM »
I have no idea what I should use as the reduction potential for   Mn—>Mn(NO3)2 or       Sn(NO3)2—>Sn

I can’t find these on the reduction potential table.
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Offline Borek

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Re: Cell Potentials
« Reply #1 on: June 15, 2021, 02:49:58 AM »
Nitrates are dissociated, what ions will be present in the solution?
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Offline bradenator

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Re: Cell Potentials
« Reply #2 on: June 15, 2021, 12:03:41 PM »
Quote from: Borek on June 15, 2021, 02:49:58 AM
Nitrates are dissociated, what ions will be present in the solution?

Would it just be Mn^2+ and Sn^4+? How would I know which side of the reaction these ions go on?

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Offline bradenator

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Re: Cell Potentials
« Reply #3 on: June 15, 2021, 01:13:38 PM »
Quote from: Borek on June 15, 2021, 02:49:58 AM
Nitrates are dissociated, what ions will be present in the solution?

I believe I have figured it out. Is it 1.049?
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Offline Orcio_87

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Re: Cell Potentials
« Reply #4 on: June 15, 2021, 05:35:33 PM »
Quote
I believe I have figured it out. Is it 1.049?
Do you mean standard potential of:

Mn + Sn2+ ---> Mn2+ + Sn

?

Slightly lowered, but it is OK.

Maybe source of data gives this little difference (about 0,005 eV).
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Offline bradenator

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Re: Cell Potentials
« Reply #5 on: June 15, 2021, 09:02:52 PM »
Quote from: Orcio_Dojek on June 15, 2021, 05:35:33 PM
Quote
I believe I have figured it out. Is it 1.049?
Do you mean standard potential of:

Mn + Sn2+ ---> Mn2+ + Sn

?

Slightly lowered, but it is OK.

Maybe source of data gives this little difference (about 0,005 eV).

Yeah that’s what I got. Thank you for confirming for me!
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