Page 22 - PC 101 practical notes 24-25..

MANSOURA NATIONAL UNIVERSIY
PHARM D- CLINICAL PHARMACY LEVEL I PHARM. ANAL. CHEM. I (PC 101)

C C) ) D Di is sp pl la ac ce em me en nt t t ti it tr ra at ti io on n: :

In this type, a very weak acid or base is displaced from its salt by

a strong acid or base. Typical examples include the titration of

sod. carbonate or sod. borate (borax) against standard HCl.

Example: Na 2CO 3 + 2 HCl → 2 NaCl + H 2O + CO 2
HCl (strong acid) displaces carbonic acid (very weak acid) in its salt

Explanation

Demonstration

of the

experiment

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