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Wednesday, October 31, 2018

[2] CATIONIC SALT HYDROLYSIS:


(2) CATIONIC HYDROLYSIS OR ACIDIC SALTS HYDROLYSIS:
          (Salt of a Weak Base and a Strong Acid)
      Let the acid be HCl and the base be NH4OH. Therefore the salt would be NH4Cl.
      NH4Cl completely dissociates into NH4+and Cl ions.
      HCl being a strong acid dissociates completely to give H+ ions and Cl ions.
In this hydrolysis, NH4OH and H+ are being produced. This implies that the solution is acidic
To calculate pH,
Multiplying and dividing by OH and rearranging,
Now, substituting the concentrations,
ILLUSTRATIVE EXAMPLE (1):
ILLUSTRATIVE EXAMPLE (2):
ILLUSTRATIVE EXAMPLE (3):
ILLUSTRATIVE EXAMPLE (4):
ILLUSTRATIVE EXAMPLE (5):



     

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