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8 Nov 2021

Given information

The ionization constant is the product of molar concentrations of hydronium ion and hydroxyl ion concentrations.

From hydronium ion concentration, pH can be calculated as  

 

Step-by-step explanation

Step 1.

The change in concentrations is calculated from the below table:

                             

The equilibrium constant for the above reaction is,

       

The concentration of and  is equal in magnitude and it is assumed to be .

from the above equation,

   

The concentration of is .

 

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Principles of Chemistry Molecular Approach
3rd Edition, 2014
Tro
ISBN: 9780321971944

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