The reduction potentials of `Al^3 + 3e^- rarr Al` and `Ag^+ + 1e^- rarr Ag` are respectively -1.66 V and 0.80 V. can you precipitate silver from `AgNO_3` by the addition of Aluminium foil?

The standard reduction potential values of there metallic cations X, Y, Z are 0.52,-3,03 -1.18 V respectively. What will be the order of reducing power of the corresponding metals?

Calculate the standard reduction potential for the reaction H_2O+ e to 1/2 H_2+OH^- using the Nernst equation and the fact that the standard reduction potential for the reaction H^+ + e to 1/2 H_2 is by definition equal to 0.00V at 25^@C

Calculate the reduction potentials for the following half cells: Ag|Ag^+ (10^-5 M),E_(Ag^+,Ag)^@=0.80V

The standard electrode potential of Au^3+(aq)+3 e- → Au(s) is 1.42 V. Predict if gold can be dissolved in 1M HCl solution and on passing hydrogen gas through gold salt soIution,metallic gold will be precipitated or not.

Consider a voltaic cell constructed with the following substances: 'Cr^(3+)(aq)+3 e^- rarr Cr(s) E^circ=-0.74 V' 'MnO_4^-(aq)+8 H^+(aq)+5 e^- rarr Mn^(2+)(aq)+4 H_2 O(l)' 'E^circ=+1 . 5 1 V' a) Which substances are oxidised and reduced in this cell? b) Write the overall cell equation and calculate the cell potential. c) Which are the negative and positive electrodes? d) Write the cell notation for this voltaic cell.

The standard reduction potential E_(Ag+//Ag)^(@)= 0.80V at 298K. If K_(sp)=1.56*10^-10 for AgCI, calculate the standard half cell reduction potential for the Ag/AgCI electrode.

Nernst equation describes the variation of electrode potential with concentration and temperature. Write cell reaction, overall reaction and calculate e.m.f at 25C^0 for the cell. Also write Nernst equation for the cell potential. Mg//Mg_(10^(-3)M)^(2+)// Ag_(0.1M)^(+) // Ag Given E_(Mg^(2+)//Mg)^0 = 2.37V E _(Ag^+//Mg)^0=0.8V .