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  • Which one of the following is equal to the   of a weak acid ? Option: 1 Its relative molecu

Which one of the following is equal to the pK_a  of a weak acid ? 

Option: 1

Its relative molecular mass 


Option: 2

The pk_b pf its conjugate base 


Option: 3

The pH of a solution containing equal amount of acids and its conjugate base 


Option: 4

The equilibrium concentration of its conjugate 


Answers (1)

best_answer

 pK_a represents the pH of the solution when the acid is half dissociated, that is when the solution contains an equal amount of the acid and its conjugate base.

 

Posted by

Irshad Anwar

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