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The standard reduction potential of Fe^(3+), Fe^(2+)//Pt is + 0.771V. This half cell is connected with another half cell such that e.m.f. of the cell is 0.771V. What is the other half cell ? |
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Answer» Solution :(i) The EMF of the standard hydrogen electrode is Zero volts. `Fe//Fe^(3+)Fe^(2+), H^(2)""_((atm)pt)""E=0.771V` E measured `=E_(R)-E_(L)` (II) emf of SHE = 0 `E_("measured")=0.771V-0=0.771V` (iii) `therefore` The other half CELL CONNECTED is Standard Hydrogen Electrode (SHE). |
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