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Electrochemistry question

2023 · 25 Jan · Shift 1 · Q16

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JEE Main
Chemistry
Electrochemistry
2023 · 25 Jan · Shift 1 · Q16

Electrochemistry question

2023 · 25 Jan · Shift 1 · Q16

JEE MainChemistryElectrochemistryNumerical+4 / −1

Consider the cell

\mathrm{Pt(s)|{H_2}(g)\,(1\,atm)|{H^ + }\,(aq,[{H^ + }] = 1)||F{e^{3 + }}(aq),F{e^{2 + }}(aq)|Pt(s)}

Given

\mathrm{E_{F{e^{3 + }}/F{e^{2 + }}}^o = 0.771\,V}

and

\mathrm{E_{{H^ + }/1/2\,{H_2}}^o = 0\,V,\,T = 298\,K}

If the potential of the cell is 0.712 V, the ratio of concentration of Fe

^{2+}

to Fe

^{3+}

is

\underline{\hspace{2cm}}

(Nearest integer)

Numerical answer

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