Question

in potentiometric titration second derivative at end point is? ​

Answer 1

Answer:

not sure

Explanation:

The end-point of the titration is detected as the potential jump of the plasticized PVC membrane electrode caused by de- crease in the concentration of DBS ion added to the sam- ple solution as a marker ion, due to the ion association re- action between the DBS ion and Cat-floc.