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Find the cell potential at 25^@C for the...

Find the cell potential at `25^@C` for the cell-`Mg//Mg^(2+)(0.001)//Cu^(2+)(0.0001 M)//Cu` Given `E^@(Mg^(2+)//Mg) = - 2.37V`, `E^@(Cu^(2+)//Cu) =+0.34V`

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Calculate the emf at 25^@C for the cell Mg(s)|Mg^(2+) (0.01M)||Sn^(2+)(0.1M)|Sn(s) (Given E_(Mg^(2+)|Mg)^0 = -2.34V & E_(Sn^(2+)|Sn)^0 = -0.136V)

Write the cell reaction and cell potential of the cell Zn//Zn^(2+)(0.01 M)abs"Ag^+(0.1M)//Ag. Given E^0(Zn^(2+)//Zn)=-0.76V E^0(Ag^+//Ag)=+0.80V .

Knowledge Check

  • The standard cell potential for the cell is , Zn|Zn^(2+)(1M)||Cu^(2+)(1M)|Cu [E^@ for Zn^(2+)//Zn=-0.76V, E^@ for Cu^(2+)//Cu=+0.34V]

    A
    `-0.76+0.34=-0.42V`
    B
    `-0.34-(-0.76)=+0.42V`
    C
    `0.34-(-0.76)=+1.10V`
    D
    `-0.76-(+.34)=-1.10V`

  • The standard cell potential for the cell is , Zn|Zn^(2+)(1M)||Cu^(2+)(1M)|Cu[E^@ for Zn^(2+)//Zn=-0.76,E^@forCu^(2+)//Cu=+0.34]

    A
    `-0.76+0.34=-0.42V`
    B
    `-0.34-(-0.76)=+0.42V`
    C
    `0.34-(-0.76)=+1.10V`
    D
    `-0.76-(+.34)=-1.10V`

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