Calculate the emf and write the chemical reaction for the cell constructed with `AI|AI^(3+)(0.01 M)` and `NI|Ni^(2+)(0.2 M)`, `E_(Ni^(2+)//Ni)^@` =-0.25V `E_(AI^(3+)//AI)^@`=-1.66V

Calculate EMF of the cell in which the given reaction occurs : Ni(s)+2Ag^(+)(0.002M)rarr Ni^(2+)(0.160M)+2Ag(s) Given, E_("cell")^(@)=1.05V .

Calculate the E.M.F. for the cell given below Mg(S)|Mg^(2+)(0.001)(M)||Cu^(2+)(0.01M)|Cu(S) given E_(Mg^(2+)//Mg)^@ =-2.36V. E_(Cu^(2+)//Mg)^@ =+0.34V

Calculate the E.M.F. for the cell given below and identify the cathod and anode. Mg (S) | Mg^(2+) (0.001M) || CU^(2+) (0.01M) | Cu(S) E_(Mg^(2+)//Mg) = - 2.36 V and E_(Cu^(2+)//Cu) = + 0.34 V.

Calculate the EMF of the electrochemical cell for which the following cell reaction is given below- Zx(S) + ni^(2_+)(aq) rarr Zn^(+2)(aq) + Ni(S) Given E_(zn^2//zn)^@ = - 0.76 V E_(Ni^(2+) // Nl) = - 0.25 V.

Represent symbolically the galvanic cells in which the following reaction occurs. Calculate the standard electromotive forces of the cells : (3) Zn+H_(2)SO_(4)rarr ZnSO_(4)+H_(2) Given : E_(Fe^(2+)|Fe)^(@)=-0.44V, E_(Sn^(2+)|Zn)^(@)=-0.14V , E_(Cu^(2+)|Cu)^(@)=0.34V, E_(Zn^(2+)|Zn)^(@)=-0.76V , E_(H^(+)|(1)/(2)H_(2))^(@)=0.00V .

Write down the appropriate Nernst equation for the following voltaic cell and calculate the e.m.f. of the cell at 298 K. Fe(s)|Fe^(2+)(0.002M)||Ag^+(0.02M)|Ag (s) (Given : E_(Fe^(2+)//fe)^@ =-0.44V and E_(Ag^+//Ag)^@ =0.80V at 298 K) 1+2

Write down the appropriate Nernst equation for the following voltaic cell and calculate the e.m.f. of the cell at 298 K. Fe(s)|Fe^(2+)(0.002M)||Ag^(+)(0.02M)|Ag(s) ["Given, "E_(Fe^(2+)|Fe)^(@)=-0.44V and E_(Ag^(+)|Ag)^(@)=+0.80V" at 298K"]

Write the cell reaction and calculate the emf of the following cell at 298 K. Sn(s)|Sn^(2+)(0.004M)||H^(+)(0.02M)|H_(2)(g)"(1 bar)"|Pt(s). (E_(Sn^(2+)|Sn)=-0.14V)

Calculate the potential of the following cell at 298 K Zn//Zn^(2+)(a=0.1)//Cu^(2+)(a=0.01)//Cu E_(Zn^(2+)//Zn)^(@)=-0.762V E_(Cu^(2+)//Cu)^(@)=+0.337V Compare the free energy change for this cell with the free enegy of the cell in the standard state.

Calculate the value of equilibrium constant of the reaction occurring in Deniell cell at 25^(@)C . Given : E_(Zn^(2+)|Zn)^(@)=-0.76V and E_(Cu^(2+)|Cu)^(@)=+0.34V