

InterviewSolution
Saved Bookmarks
1. |
The potential of the cell for the reaction `M_((s))+2H^(+)(1M)toH_(2(g)),(1atm)+M^(2+)(0.1M)` is 1.500 V. the standard reduction potential for `M^(2+)//M_((s))` couple is:-A. 0.1470VB. 1.470VC. 14.70VD. None of these |
Answer» Correct Answer - B `E_(cell)=E_(cell)^(o)=-(0.0591)/(2)log((["products"])/(["Reactants"]))` `1.5=E_(cell)^(@)-0.0296log[(0.1)/(1)]` `E_(Cell)^(o)=1.470V` `E_(Cell)^(o)=E_(H^(+)//H_(2))^(o)-E_(M//M^(2+))^(o)` `E_(M//M^(2+))^(o)=-1.470` So, `E_(M^(2+)//M)^(o)=1.470V`. |
|