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Finding n

Posted: Sat Feb 22, 2020 6:41 pm
by Haley Dveirin 1E
How do you find n? does it have to do with moles like the variable n has in the past or is it the number of electrons being transferred?

Re: Finding n

Posted: Sat Feb 22, 2020 7:13 pm
by Sartaj Bal 1J
"n" in electrochemistry refers to the number of moles of electrons transferred. It is usually found using the same methods as before: using the given values to isolate n in the required equation.

Re: Finding n

Posted: Sat Feb 22, 2020 8:22 pm
by Keya Jonnalagadda 1A
Hi- n does refer to moles in electrochem, just like before. An example of this is the delta G standard=-nFEcell equation. N can usually be found in electrochem questions just by looking at the redox reaction or balancing the given equation.

Re: Finding n

Posted: Sat Feb 22, 2020 9:40 pm
by Tahlia Mullins
Considering the constant F in electrochemistry, it can be concluded that n refers to the number of moles of electrons being transferred and this is easy to remember since redox reactions come down to an exchange of electrons reducing or oxidizing an atom or molecule.

Re: Finding n

Posted: Sun Feb 23, 2020 1:32 am
by WesleyWu_1C
"n" means moles of electrons and can easily be found by looking at your balanced redox reaction and looking at the number of electrons that were transferred.

Re: Finding n

Posted: Sun Feb 23, 2020 1:43 am
by Kayla Maldonado 1C
WesleyWu_1C wrote:"n" means moles of electrons and can easily be found by looking at your balanced redox reaction and looking at the number of electrons that were transferred.

So this is the number of moles of electrons transferred after the entire redox reaction and not the total of electrons transferred in each part of the balanced equation?

Re: Finding n

Posted: Sun Feb 23, 2020 11:05 am
by HuyHa_2H
For electrochemistry in this case, you can identify the n (as moles/electron in this case) from balancing your redox reaction since redox reactions involve the transfer of electrons.