n in NFE


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Karina Kong 2H
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n in NFE

Postby Karina Kong 2H » Sun Mar 08, 2020 11:48 pm

For n in the equation Delta G=-nFE, how do you know how many moles you need?

Sidharth D 1E
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Re: n in NFE

Postby Sidharth D 1E » Sun Mar 08, 2020 11:50 pm

N should be the number of electrons transferred in that scenario.

lilymayek_1E
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Re: n in NFE

Postby lilymayek_1E » Sun Mar 08, 2020 11:57 pm

When you are solving for a redox reaction, and you split the original reaction into its respective half-reactions, you have to balance both the molecules involved and the electrons transferred. That final balanced value of electrons transferred is your n value. The top answer in this forum helps!
https://chemistry.stackexchange.com/questions/5122/how-is-it-determined-how-many-electrons-are-transferred-in-redox-reactions

J Medina 2I
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Re: n in NFE

Postby J Medina 2I » Sun Mar 08, 2020 11:59 pm

n is the number of electrons transferred which cannot be determined until your redox half-reactions are balanced. These half-reactions should have the same number of electrons transferred on opposite sides.

SarahCoufal_1k
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Re: n in NFE

Postby SarahCoufal_1k » Mon Mar 09, 2020 12:00 am

n is the number of electrons transferred in the redox equation. When you do your reduction half reaction there is a certain amount of electrons transferred and same case for the oxidation half reaction. You then have to multiply the equations to balance the electrons. when they match and cancel that number is n

Jesse H 2L
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Re: n in NFE

Postby Jesse H 2L » Mon Mar 09, 2020 12:01 am

the moles of electrons transferred

Kaitlyn Ang 1J
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Re: n in NFE

Postby Kaitlyn Ang 1J » Mon Mar 09, 2020 12:02 am

After you balance the redox reactions so that the "number" of electrons from the half reactions cancel, that common "number" of electrons is your n

Eesha Chattopadhyay 2K
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Re: n in NFE

Postby Eesha Chattopadhyay 2K » Mon Mar 09, 2020 12:03 am

n is the number of moles of electrons that are transferred.

Nawal Dandachi 1G
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Re: n in NFE

Postby Nawal Dandachi 1G » Mon Mar 09, 2020 12:04 am

n is the number of moles of electrons transferred

Sanjana K - 2F
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Re: n in NFE

Postby Sanjana K - 2F » Mon Mar 09, 2020 12:30 am

Remember that it's the number of electrons after you balance your equations (so the number of electrons transferred in the cathode half reaction should equal the number of electrons transferred in the anode half reaction, which should equal your value of n).

Charlene Datu 2E
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Re: n in NFE

Postby Charlene Datu 2E » Thu Mar 12, 2020 4:42 pm

Since it's n is the number of moles of electrons in the reaction after both half-reactions are balanced, it's good to note that it doesn't matter which half-reaction you take this value from. This value should be the same in both half-reactions.

Hope Hyland 2D
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Re: n in NFE

Postby Hope Hyland 2D » Thu Mar 12, 2020 4:45 pm

n is the number of electrons being transferred (after balancing the half-reactions)

Ryan Yoon 1L
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Re: n in NFE

Postby Ryan Yoon 1L » Thu Mar 12, 2020 9:49 pm

n is the whole number mole value of electrons that were shared in the half reactions.

Ryan Yoon 1L
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Re: n in NFE

Postby Ryan Yoon 1L » Thu Mar 12, 2020 9:49 pm

n is the whole number mole value of electrons that were shared in the half reactions.

ramiro_romero
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Re: n in NFE

Postby ramiro_romero » Thu Mar 12, 2020 10:09 pm

n is how many moles of electrons are transferred. First you need to determine the half rxns, then balance the oxidation and reducing reactions so that the electrons cancel out (and don't appear in overall rxn). Finally, once both half rxns are balanced, the coeffecient of both electrons is your value for n.

Kaylee Clarke 1G
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Re: n in NFE

Postby Kaylee Clarke 1G » Sat Mar 14, 2020 11:49 am

n is referring the electrons transferred after balancing the half-reaction!

Altamash Mahsud 1I
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Re: n in NFE

Postby Altamash Mahsud 1I » Sat Mar 14, 2020 12:10 pm

The n in that equation is not the number of moles, but it is instead the number of electrons being transferred in the redox reaction. You can get this number by balancing the redox half reactions and combining these half reactions to get the completed redox reaction, which will tell you the number of transferred electrons.

ThomasNguyen_Dis1H
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Re: n in NFE

Postby ThomasNguyen_Dis1H » Sat Mar 14, 2020 12:42 pm

n is the number of electrons transferred in the final equation

205154661_Dis2J
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Re: n in NFE

Postby 205154661_Dis2J » Sat Mar 14, 2020 4:17 pm

N stands for the number of electrons transferred. So you would have to separate your redox rxns into the reduction and oxidation rxn in order to see how many electrons are being transferred after you balanced both reactions.

chimerila
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Re: n in NFE

Postby chimerila » Sat Mar 14, 2020 6:13 pm

It can be kind of confusing, especially since I'm so used to seeing "n" and thinking "MOLES". But to help myself, I like to remember that we're using this equation when solving problems related to electrochemistry, so "n" actually signifies electrons.

"E"lectrochemistry ------> "e"lectrons :)

Nicoli Peiris 1B
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Re: n in NFE

Postby Nicoli Peiris 1B » Mon Feb 22, 2021 12:32 pm

n is the number of moles of electrons lost by what is oxidized and gained by what is reduced.

Alison Perkins 2B
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Re: n in NFE

Postby Alison Perkins 2B » Mon Feb 22, 2021 12:44 pm

n is the moles of electrons transferred in the reaction.

John Calonia 1D
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Re: n in NFE

Postby John Calonia 1D » Mon Feb 22, 2021 12:47 pm

You can find n by looking at the redox reaction and the number of electrons that cancel out on each side of the reaction

Jonathan Batac - 2D
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Re: n in NFE

Postby Jonathan Batac - 2D » Mon Feb 22, 2021 12:48 pm

n will be the moles of electrons transferred. Remember to balance your redox reaction to get the correct number of moles of e- transferred.

Devin Patel 2D
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Re: n in NFE

Postby Devin Patel 2D » Thu Feb 25, 2021 4:25 pm

Once you balance the redox reaction or even balance the half equations, you should be able to see the coefficient in front of the electrons or see how many electrons are transferred. This number would be the n in the NFE equation.

Aarushi Verma 2I
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Re: n in NFE

Postby Aarushi Verma 2I » Thu Feb 25, 2021 4:28 pm

Once you balance your oxidation and reduction half reactions, n is going to the number of electrons that transferred in the equation. Since its balanced, it should be the same in both reactions.

emwoodc
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Re: n in NFE

Postby emwoodc » Thu Feb 25, 2021 7:13 pm

n is the number of electrons that are transferred for that specific question.

LarisaAssadourian2K
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Re: n in NFE

Postby LarisaAssadourian2K » Thu Feb 25, 2021 7:31 pm

N is the number of electrons transferred in the redox reaction. Be sure to balance the reaction to get the correct number.

Ava Nickman
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Re: n in NFE

Postby Ava Nickman » Thu Feb 25, 2021 8:27 pm

the value of n

Gigi Elizarraras 2C
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Re: n in NFE

Postby Gigi Elizarraras 2C » Thu Feb 25, 2021 9:17 pm

The value of n is going to be the amount of electrons transferred:) you can find this out by doing the redox half reactions!

Hope this helps!

VincentLe_3A
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Re: n in NFE

Postby VincentLe_3A » Thu Feb 25, 2021 10:07 pm

n represents the number of moles of electrons transferred within the redox reaction.

Brandon Le 3C
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Re: n in NFE

Postby Brandon Le 3C » Thu Feb 25, 2021 10:32 pm

You would plug in the number of moles of electrons being transferred in the redox reaction for the variable n.

aashmi_agrawal_3d
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Re: n in NFE

Postby aashmi_agrawal_3d » Thu Feb 25, 2021 11:30 pm

n is the number of electrons transferred

nayha a 1E
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Re: n in NFE

Postby nayha a 1E » Thu Feb 25, 2021 11:37 pm

I believe that it would be the number of electrons transferred.

Ryan Laureano 3I
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Re: n in NFE

Postby Ryan Laureano 3I » Thu Feb 25, 2021 11:49 pm

N is the number of electrons after you balance the redox reactions.

Sophia Spungin 2E
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Re: n in NFE

Postby Sophia Spungin 2E » Sat Feb 27, 2021 7:53 pm

To find n, write the two half reactions with equal charges. The number of electrons transferred in the overall balanced reaction is the value of n.

Justin Lin 1B
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Re: n in NFE

Postby Justin Lin 1B » Sat Feb 27, 2021 8:18 pm

n is the number of electrons that are involved in our redox reaction. Make sure to balance out the charges though.

Michael Cardenas 3B
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Re: n in NFE

Postby Michael Cardenas 3B » Sun Feb 28, 2021 1:12 am

n is the number of transferred in each reaction, and it is typically a whole number.

Susanna Givan 2B
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Re: n in NFE

Postby Susanna Givan 2B » Sun Mar 14, 2021 11:49 pm

How do I calculate the n in NFE? Do I have to balance the half-reactions? What if the electrons is 0? Would that ever happen?

Kelly Ha 1K
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Re: n in NFE

Postby Kelly Ha 1K » Sun Mar 14, 2021 11:52 pm

Susanna Givan 2B wrote:How do I calculate the n in NFE? Do I have to balance the half-reactions? What if the electrons is 0? Would that ever happen?

You can calculate n (number of electrons transferred) by balancing the redox reactions. I'm pretty sure the number of electrons wouldn't be 0 since it wouldn't be a redox reaction if no electrons were transferred.

jadensteplight_2F
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Re: n in NFE

Postby jadensteplight_2F » Sun Mar 14, 2021 11:54 pm

n is the number electrons that are transferred in balanced redox reactions

Hannah Alltucker 3L
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Re: n in NFE

Postby Hannah Alltucker 3L » Sun Mar 14, 2021 11:59 pm

N is the number of the electrons being transferred for that given reaction! When you balance the redox reactions and break down how many e- are being transferred between molecules/sides, you can just plug that number in.

Neha Jonnalagadda 2D
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Re: n in NFE

Postby Neha Jonnalagadda 2D » Thu Feb 10, 2022 2:18 pm

N is the number of electrons transferred, but it cannot be determined until the reaction is balanced.

Kathryn Heinemeier 3H
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Re: n in NFE

Postby Kathryn Heinemeier 3H » Sun Feb 13, 2022 11:56 pm

you would want to balance the half reactions and the number of electrons would be the value of n.

joshua_quinn_1C
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Re: n in NFE

Postby joshua_quinn_1C » Fri Feb 18, 2022 9:51 am

n represents the moles of electrons transferred. Therefore, you can look at the balanced redox reaction and see how many moles of electrons were transferred and use that value for n. Hope this helps!

Jessica Servoss 1H
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Re: n in NFE

Postby Jessica Servoss 1H » Fri Feb 18, 2022 10:35 am

"n" in this equation is referring to the number of moles of electrons transferred in the redox reaction. To see how many moles of electrons you have, you must first balance the two half reactions to see where the electrons are going, and how many of them there are. Once you have balanced them, n should be easy to find and plug in.

ThomasL1L
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Re: n in NFE

Postby ThomasL1L » Fri Feb 18, 2022 11:42 am

n is the number of electrons that are transferred in the balanced redox reaction.

Allen Mayo 1E
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Re: n in NFE

Postby Allen Mayo 1E » Sun Feb 20, 2022 3:57 pm

In the equation, the n is simply just moles transferred.

Nishan Reddy 3K
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Re: n in NFE

Postby Nishan Reddy 3K » Mon Feb 21, 2022 12:24 am

n refers to the number of electrons being transferred in the reaction.

KyleNagasawaDisc3C_Chem 14B2022W_
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Re: n in NFE

Postby KyleNagasawaDisc3C_Chem 14B2022W_ » Mon Feb 21, 2022 8:10 am

Recall that dG is energy used to perform work. In studies of electricity and circuits, work is often expressed as the (dot product) between Charge and Voltage . In dG = -nFE, F represents the ratio between charge and one mole of electron, and E represents voltage. As a logical continuation of this, n would thus need to represent the mole of ELECTRONS.

Coraly De Leon
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Re: n in NFE

Postby Coraly De Leon » Mon Feb 21, 2022 2:29 pm

Hello,
It will just be the number of moles being transferred.

Coraly De Leon
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Re: n in NFE

Postby Coraly De Leon » Mon Feb 21, 2022 2:32 pm

Hello,
It will just be the number of moles being transferred.

trevina_brown_2A
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Re: n in NFE

Postby trevina_brown_2A » Mon Feb 21, 2022 5:53 pm

n is the number of electrons transferred

Charlie Sjogren-Black
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Re: n in NFE

Postby Charlie Sjogren-Black » Mon Feb 21, 2022 8:44 pm

n is number of electrons transferred

briana lay 3c
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Re: n in NFE

Postby briana lay 3c » Fri Feb 25, 2022 1:25 pm

Hello!
The n in -nFE stands for the number of electrons being transferred, hope it helps!

Triston Dinh 1D
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Re: n in NFE

Postby Triston Dinh 1D » Fri Feb 25, 2022 1:41 pm

n is the number of electrons transferred in the redox reaction. Just remember to make sure that the equations for the oxidation and reduction reaction need to have equal moles of electrons transferred.

SerenaSabedra
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Re: n in NFE

Postby SerenaSabedra » Fri Feb 25, 2022 2:58 pm

n is equal to the number of electrons transferred in the redox reaction! I find that this is easiest to calculate when you balance each half reaction, as it will explicitly tell you how many e- cancels out when the entire redox reaction is put together.

14b_student 2E
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Re: n in NFE

Postby 14b_student 2E » Fri Feb 25, 2022 3:03 pm

The moles of electrons transferred

Nicole Friday 1E
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Re: n in NFE

Postby Nicole Friday 1E » Fri Feb 25, 2022 10:40 pm

n is the number of electrons transferred which can be determined from the half-balanced redox reaction.

Benjamin Nguyen 1J
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Re: n in NFE

Postby Benjamin Nguyen 1J » Fri Feb 25, 2022 11:34 pm

n is the number of electrons transferred, which you would determine after balancing the half reactions.

Sidharth Paparaju 3B
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Re: n in NFE

Postby Sidharth Paparaju 3B » Sat Feb 26, 2022 12:03 am

I think n is the number of electrons transferred.

Sidharth Paparaju 3B
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Re: n in NFE

Postby Sidharth Paparaju 3B » Sat Feb 26, 2022 12:03 am

I think n is the number of electrons transferred.

Collin Le 3I
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Re: n in NFE

Postby Collin Le 3I » Sat Feb 26, 2022 2:34 am

N is the number of electrons that are transferred in the redox reaction.

Natalie Coughlin 1I
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Re: n in NFE

Postby Natalie Coughlin 1I » Sat Feb 26, 2022 10:22 am

N does not refer to moles of the substances I believe, but instead the moles of electrons transferred.

Hannah Jin 1J
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Re: n in NFE

Postby Hannah Jin 1J » Sat Feb 26, 2022 11:38 am

n would be the number of electrons transferred, which you can obtain by balanced half reactions/a redox reaction.


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