Question

How can we calculate n factor in stiochiometry

Answer 1

Heya user
Here is your answer !!

In stoichiometry , n factor for different compounds are calculated as :--

( A ) For Acids :
----- the basicity of that particular acid is its n factor .
For example , n factor for H2SO4 is 2 ( since its basicity is 2 ) whereas for HCl its 1 ( since its basicity is 1 ) .

( B ) For Bases :
----- the acidity of that particular base is its n factor .
For example , n factor for Mg(OH)2 is 2 ( since its acidity is 2 ) whereas for NaOH is 1 ( since its acidity is 1 ) .

( C ) For Salts :
----- Take either the anion or the cation and multiply its no. of atoms present by its valency .

For ex : Lets take NaCl as an example .

Its cationic part is Na whereas its anionic part is Cl .
Lets take the cationic part , i.e. , Na .
No of atoms of Na present is 1 and its valency is 1 .
So , n factor of NaCl is 1×1 = 1 .



***** Note :

Basicity of an acid is the no. of hydronium (H3O+) ions its forms when it is dissolved in water .

Acidity of a base is the no. of hydroxyl (OH-) ions its releases when it is dissolved in water .

Hope it helps you !! :)