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What is the potential of the cell containing two hydrogen electrode as represented below ? `Pt,(1)/(2) H_(2)(g)|H_(2)O||H^(o+)(0.01M)|1//2H_(2)(g)Pt`A. `-0.236V`B. `-0.0591V`C. `0.236V`D. `0.0591V` |
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Answer» Correct Answer - c `E_(cell)=(0.059)/(1)log.([H^(o+)]_(RHS))/([H^(o+)]_(LHS))` `[` For `H_(2)O,[H^(o+)]=[overset(c-)(O)H]=10^(7)M]` `=0.059log.(10^(-3))/(10^(-7))=0.059xx4=0.236V` or `E_(cell)=-0.059(pH_(c)-pH_(a))=-0.059(3-7)=0.235V` |
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