The Zinc/silver oxide cell is used in hearing aids and electric watches
`ZnrarrZn^(2+)+2bare`
`E^@=0.76V`
Ag_2O+H_2O+2barerarr2Ag+2OH^(-)`
`E^@=0.344V`
Find `E^@` of the cell and `DeltaG^@` in joules?

In a simple electrochemical cell, which is in the standard state, the half cell reactions with their appropriate reduction potentials are: Pb^(2+)(aq)+2barerarrPb(s) , (E^@=+0.13V) . Ag^(+)(aq)+barerarrAg(s) , E^@=+0.80V) What is the cell reaction for the cell?

In the button cells widely used in watches and other devices the following reaction takes place: Zn(s) + Ag20(s) + H2O(l) Zn2+(aq) + 2Ag(s) + 20H“(aq) Determine rG and E for the reaction.

In the button cell widely used for watches and other devices, the following reaction takes place: Zn(s)+Ag_2O(s)+H_2O(l)rarrZn^(2+)(aq)+2Ag(s)+2OH^(-)(aq) Determine the value of K_c for the above reaction using the following data? AgO_2(s)+H_2O(l)+2barerarr2Ag(s)+2Oh^(-)(aq) ( E^@=0.344V ) Zn^(2+)(aq)+2barerarrZn(s) ( E^@=-0.76V )

Consider the following half cell reaction: Br_2+2barerarr2Br^- , E^@=1.09V I_2+2barerarr2I^- , E^@=0.54V If I_2 and Br_2 are added to solution containing 1M concentration of I^- and Br^- resepctively. How will the increase in the concentration of Br^- affect E_(cell) ?

Tarnished silver contains Ag_2S . Can this tranish be removed by placing tranished silver articels in an aluminium pan containing an inert electrolyte solution such as NaCl? The standard electrode potentials for the half cell reactions are: Ag_2S(s)+2barerarr2Ag(s)+S^(2-)(aq) , E^@=-0.71V and Al^(3+)+3barerarrAl(s) , E^@=-1.66V .

Can a zinc spoon be used to stir a solution of copper sulphate? Support your answer with reason E_(Zn^(2+)|Zn)^@=-0.76V , E_(Cu^(2+)|Cu)^@=+0.34V

The standerd potential at 25^(@) for the following Half rection is given : Zn^(2+)+2e^(-)toZn,E^(@)=-0.762 V Mg^(2+)+2e^(-)toMg,E^(@)=-2.37 V When Zinc dust is added to the solution of MgCl_(2) .

The following chemical Feaction is occurring in an electrochemical cell. Mg(s) + 2 Ag^(+) (0.0001 M)rarr Mg^(2+) (0.10 M) + 2 Ag (s) The E^@ electrode values are Mg^(2+)//Mg = -2.36 V Ag^(+)//Ag = 0.81 V For this cell, calculate/write : Cell potential E_(cell) .

The following chemical Feaction is occurring in an electrochemical cell. Mg(s) + 2 Ag^(+) (0.0001 M)rarr Mg^(2+) (0.10 M) + 2 Ag (s) The E^@ electrode values are Mg^(2+)//Mg = -2.36 V Ag^(+)//Ag = 0.81 V For this cell, calculate/write : (i)Symbolic representation of the above cell. (ii) Will the above cell reaction be spontaneous?

A copper silver cell is set up. The copper ion concentration is 0.10 M. the concentration of silver ion is not known. The cell potential when measured was 0.422V. Determine the concentration of silver ions in the cell. Given: E_(Ag^+|Ag)=+0.80V , E_(Cu^(2+)|Cu)=+0.34V