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Which has got smallest size Fe,Fe^(+2)&F...

Which has got smallest size `Fe,Fe^(+2)&Fe^(3+)` ?

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Which one has the larger size : Fe^(2+) " or " Fe^(3+) ?

Standard electrode potentials are : Fe^(2+) "|" Fe (E^(@) = - 0.44 V), Fe^(3+) "|" Fe^(2+) (E^(@) = 0.77 V) Fe^(2+), Fe^(3+) and Fe blocks are kept together, then

Standard electrode potentials are : Fe^(2+) "|" Fe (E^(@) = - 0.44 V), Fe^(3+) "|" Fe^(2+) (E^(@) = 0.77 V) Fe^(2+), Fe^(3+) and Fe blocks are kept together, then

The standard reduction potentials of Fe^(3+)//Fe and Fe^(2+)//Fe electrode systems are -0.035 V and -0.44V respectively. Predict which of the two oxidations is easy : Fe^(3+)//Fe and Fe^(2+)//Fe .

For the galvantic cell Pt(s)|Fe^(2+),Fe^(3+)"||"Fe^(2+)"|"Fe cell reaction is

Given E_(Fe^(3+)//Fe)^(@) = -0.36 V, E_(Fe^(2+)//Fe)^(@)= - 0.439V . The value of standard electrode potential for the change , Fe^(3+)+e^(-) rarr Fe^(2+) will be

Calculate the standard e.m.f. of the reaction Fe^(3+)+3e^(-)rarrFe_((s)) . Given the e.m.f. values of Fe^(3+)+e rarr Fe^(2+) and Fe^(2+)+2e rarr Fe_((s))" as "+0.771 V and =0.44V " respectively."