what is electrode potential? explain it with example.

Asked by shivam singh solanki | 6th Jul, 2013, 01:24: PM

Expert Answer:

The difference between the charge on an electrode and the charge in the solution is known as electrode potential.
The standard electrode potential of a metal is the potantial acquired when the metal is immersed in a 1 mol dm-3solution of its ions at a temperature of 25oC.

To calculate the standard cell potential, from the standard electrode potentials we do the following:

E cell = E right hand half cell - E left hand half cell.

The left-hand half cell is conventionally the oxidising half-cell.

Example: Electrode potential 

Cr3+(aq) +3e- -----> Cr(s)   E = -0.74

Answered by  | 7th Jul, 2013, 10:30: AM

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