what is E-  value?

Dear student
Please find the solution to the asked query:

In my opinion you are referring to the Standard Electrode potential value, which is represented by Eo or Eϴ
This standard potential is the measure of the individual potential of a reversible electrode in the standard state with solutes at an effective concentration of 1mol/dm3, and gases at a pressure of 1 atm.
The values are mostly tabulated at 25oC.


 
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