Electrochemistr...

What is the charge in coulombs required to liberate 0.5 mol H2 gas in the electrolysis of NaCl (aq) ?

During the electrolysis of molten alumine 13.5 g Al are deposited in one hour . What is charge in faraday passed ?

The potential of a hydrogen electrode at pH = 10 is

The standard EMF of Daniell cell is 1.10 volt. The maximum electrical work obtained from the Daniell cell is

When KMnO4 acts as an oxidizing agent and ultimately forms MnO42?, MnO2, Mn2O3 and Mn2+, then the number of electrons transferred in each case is

In the electrolysis of acidulated water, it is desired to obtain 1.12 cc of hydrogen per second under S.T.P. conditions. The current to be passed is

An increase in equivalent conductance of a strong electrolyte with dilution is mainly due to

Standard electrode potentials are: Fe2+ | Fe (Eo = -0.44 V), Fe3+ | Fe2+ (Eo = 0.77 V) Fe2+, Fe3+ and Fe blocks are kept together, then

Zn | Zn2+ (a = 0.1M) || Fe2+ (a = 0.01M)|Fe. The emf of the above cell is 0.2905 V. Equilibrium constant for the cell reaction is

The standard reduction potentials of Zn2+ | Zn, Cu2+ | Cu and Ag+ | Ag are respectively ?0.76, 0.34 and 0.8 V. The following cells were constructed. a) Zn | Zn2+ || Cu2+ | Cu b) Zn | Zn2+ || Ag+ | Ag c) Cu | Cu2+ || Ag+ | Ag What is the correct order E?cell of these cells?