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Chemical Equilibrium

Chemical Equilibrium

This is considered as a very important topic as it gives us the idea about how a reaction happens.

Electrolyte

This term is referred to all the ions in aqueous form present in a solvent. Like H+ in water is one such example. 

Ostwald's Dillusion Law

It explains the processes that undergo during the ions dissociation.
Let us study it by a case:-
Consider you have 1 mole of CH3COOH sloution and 1 liter of pure water. If you add Acid in water what will happen? You may think that the acid will complete mix with the water and Concentration of 1 Molar Acid with will form but it doesn't happen. The acid disassociates but not so much that entire acid will mix. But if we take HCl the case will be as the above on explained. Then why is it so?
Here comes the concept of Reaction Constant or Equilibrium Constant represented as (K). 

Equilibrium Constant

Consider the above reaction:-
Now let us see what happens inside the water.
CH3COOH=>CH3COO^- + H^+
The acid into its constituent ions due to the H+ and OH- ion in water. 
Anionic Part is also called as the Conjugate Base for Acid. Therefore if the acid is weak then it's conjugated Base will be strong electrolyte. There for Acetate ion will be a strong base then it disccociate water further so the next above reaction is like this:--





The term K is written as Ka so that it is understood that it represents Equilibrium Constant for weak acid.

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