n factor

Asked by Anushasen | 24th Jun, 2009, 08:26: AM

Expert Answer:

n factor :

For acids: it is their basicity .

Example: For H2SO4 the basicity is 2 since it has gives two H+ ions on dissociation.

So, n fatcor = 2

For bases, it is their acidity.

Example: For NaOH the acidity is 1 since it gives one OH- ion on dissociation.

So, n fatcor = 1

For a species getting oxidised , n factor is equal to the number of electrons lost.

Example: Cu Cu2+ + 2 e-

n factor  = 2

For a species getting reduced , n factor is equal to the number of electrons gained.

Example: Zn2+ + 2 e- Zn

n factor  = 2

 

 

Answered by  | 26th Jun, 2009, 09:43: AM

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