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Explain how you can find standard EMF va...

Explain how you can find standard EMF value for `Zn^(2+)//Zn` half cell is -0.76V` using standard hydrogen electrode?

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When a metal rod C in dipped in an aquos soluion of a metal D (having conentration 1M for D^(2+) ion) at 25^@C the standard electrode potential are C^(2+)//C=-0.76 volts. D^(2+)D=+0.34 volts .

The standard reduction potential of the half reaction Zn^(2+)(aq) + 2e^(-) rarr Zn(s), E^@ = 0.76V . What do you think of the standard reduction potential for the half reaction.

The standard electrode potential for Daniel cell is 1.1V. Calculate the standard Gibb's energy for the reaction. Zn_(s)+ Cu_(aq)^(2+) rarr Zn_(aq)^(2+)+Cu_(s) .

One half-cell in a voltaic cell is constructed from a silver wire dipped in silver nitrate solution of unknonw concentration. It other half cell consists of a zinc electrode dipping in 1.0M solution of Zn(NO_3)_2 . A voltage of 1.48V is measure for this cell. Use this information to calculate the concentration of silver nitrate solution used (E_(Zn^(2+)//Zn)^0=-0.76V,E_(Ag^+//Ag)^0=+0.80V)

Which is a stronger reducing agent Zn or Fe? If E_(Zn^(2+)//Zn)^@ = -0.76V , and E_(Fe^(2+)//Fe = -0.44V

A zinc rod is dipped in 0.1M sol^ of ZnSO_4 . The sald is 95% dissociated at this dilution at 298K. Calculate the electrode potential. (E_(Zn^(2+)//Zn)^@=-0.76V)

The measured emf of the cell- Pt(s)H_2(G,1bar)|H^+(aq,1M)|| Cu^(2+)(aq,1M)|Cu(s)is 0.34V . What is the standard electrode potential of the half cell corresponding to the reaction?

Following are the data of standard reduction half cell potentials of certain electrochemical cells. E_(Ag^(+)//Ag)^@ = 0.80V & E_(Cu^(2+)//Cu)^@ = 0.34V E_(Sn^(2+)//Sn)^@ =-0.14V & E_(Na^(2+)//Na)^@ = -2.73V Calculate the standard EMF of the cells.

Following are the data of standard reduction half cell potentials of certain electrochemical cells. E_(Ag^(+)//Ag)^@ = 0.80V & E_(Cu^(2+)//Cu)^@ = 0.34V E_(Sn^(2+)//Sn)^@ =-0.14V & E_(Na^(2+)//Na)^@ = -2.71V Represent the electrochemical cell constructed from these pair of half cells.

Following are the data of standard reduction half cell potentials of certain electrochemical cells. E_(Ag^(+)//Ag)^@ = 0.80V & E_(Cu^(2+)//Cu)^@ = 0.34V E_(Sn^(2+)//Sn)^@ =-0.14V & E_(Na^(2+)//Na)^@ = -2.74V Also identify andode, cathode and direction of flow of current in each of the constructed cells.

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