Page 46 - Analytical Chemistry I E-book
P. 46

The buffer action of basic buffer:

Upon addition of a strong acid: Strong acid is converted to

a weakly dissociated water and pH practically does not change.

H+ + NH4OH                          NH4+ + H2O

Upon addition of a strong base: Strong base is converted to

a weakly dissociated base and pH practically does not change.

OH- + NH4Cl                         NH4OH + Cl-
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