Conductometric titration of mixture of strong and weak acid vs strong base/Conductometry

This video describes how to draw the conductometric titration curve for a mixture of acids with strong base ( mixture of acetic acid /CH3COOH and HCl) vs l. It explains about the Conductometry, Principle of Conductometric titration. It explains on how to draw the conductometric titration curve for the mixture of acids with a strong base. Introduction of Conductometry, Conductance, advantages and disadvantages of conductometric titration, applications of conductometric titration.
Before titration – HCl and CH3COOH present
CH3COOH does not dissociate
HCl dissociates and presence of H+ with high ionic conductivity – high conductance
During titration till equivalence point/neutralisation point of HCl –
H+ with high ionic conductivity is replaced by Na+ with low ionic conductivity – conductance decreases
CH3COOH – does not dissociate easily
CH3COONa – dissociates better than CH3COOH
NaOH – dissociates immediately
Na+ – has low ionic conductivity
After complete neutralisation of HCl –initial addition of NaOH – NaCl, CH3COOH and small amount of CH3COONa
CH3COOH does not dissociate easily due to common ion effect of CH3 COO- – slight decrease in conductance
During titration till equivalence point/neutralisation point of CH3COOH–
CH3COONa ionises better than CH3COOH – conductance increases slowly
After equivalence point of CH3COOH – excess NaOH is added
accumulation of OH - with high ionic conductivity – conductance increases drastically
V1 - neutralisation point of HCl
V2- neutralisation point of CH3COOH
Used for coloured solutions
Suitable for turbid solutions
Suitable for dilute solutions
System with incomplete reactions
Used for determining the concentration of weak bases and weak acids or mixture of acids
Special care is not required at the end point, as it is determined graphically
Does not require indicators.

Видео Conductometric titration of mixture of strong and weak acid vs strong base/Conductometry канала Revathi Purushothaman