A cell contains two hydrogen electrodes. The negative electrode is in contact with a solution of `10^-6M` hydrogen ions. The e.m.f. of the cell is 0.118V at `25^@C`. Calculate the concentration of hydrogen when at the positive electrode.

A cell consists of two hydrogen electrodes. The negative electrode is in contact with a solution having pH=6. the positive electrode is in contact with a solution of pH=x. calculate the value of x if the e.m.f of the cell is found to be 0.118V at 298K

Calculate the potential of hydrogen electrode income with a solution whose pH is 10.

pH of the solution having hydrogen ions concentration of 1M is

The hydrogen ion concentration of the oceans is about 2xx10^(-9) M. What is the pH?

If E^@ for copper electrode is +0.34V, how will you calculate e.m.f. value when the solution in contact with it is 0.1 M in copper ions? How does e.m.f. for copper electrode change when concentration of Cu^(2+) ion in the solution is decreased?

A conductivity cell has its electrodes 1 cm apart and each electrode has area of cross-section 2 cm^(2) , when filled with M/50 solution of sodium acetate, the cell shows a resistance of 166.5 ohms. Calculate the molar conductance of sodium acetate solution at the givne concentration.

A hydrogen gas electrode is made by dipping platinum wire in a solution of HCl of pH=10 and by passing hydrogen gas around the platimum wire at one atm pressure. The oxidation potential of electrode would be?

Determine the pH of the solution when hydrogen ion concentration is 1.0xx10^-5M .