Analytical chemistry problem

Question

can you plz tell me about the steps involved in conductometric titration and potentiometric method which comes under analytical chemistry...thankyou

Answer 1

They are like normal titrations  in terms of using a burette and stuff. However instead of adding an indicator a change in conductivity/EMF is measured. In both cases a sharp change in reading should be seen at the equivalence point though sometimes the conductimetric can be a bit tricky.  

Answer 2

conductometry titration:

this is the best instrumental method used for analysing the acid mixtures.

you have to take the solution to be analysed either acid or acid mixture in a beaker immerse the condutivity cell in the solution and titrate it aginst the base which is taken in the burette in increments of 0.5 usually depending on the acid wether it is a weak acid or strong acid or acid mixture the conductance changes. u will get a sharp chenge in conductance.

simillarly in potentiometric titration u have two electrodes one platinum and calomel electrode both should  be immersed in the solution to analysed(reducing agent) and measure the potential for the addition of oxidising agent in 0.5cm3 increments here also u will get sharp change in potential by ploting differential curve i.e de/dv