Table of Contents
Conductometric Titration – Introduction
Conductometric Titration – Terms Used : Conductometric titration is a method of titration that uses the conductivity of a solution to determine its concentration. The titrant and the analyte are both solutions that contain ions, and the titration is performed by adding the titrant to the analyte until the desired endpoint is reached. The concentration of the titrant can be determined by measuring the conductivity of the solution before and after the titration.
What is Conductometric Titration?
Conductometric titration is a technique used to determine the concentration of an analyte in a solution by measuring the electrical conductivity of the solution as it is also titrated with a titrant.
Terms used in Conductometric Titration
Conductometric titration a technique used to determine the concentration of an unknown substance in a solution by measuring the electrical conductivity of the solution. Therefore the unknown substance added to a solution of known concentration, and the resulting change in electrical conductivity monitored as the unknown substance added. The concentration of the unknown substance can determined by comparing the change in conductivity to a standard curve.
Principle of Conductometric Titration
Conductometric titration a laboratory technique used to determine the concentration of an unknown solution. The unknown solution titrated with a known concentration of a titrant. The titrant is a strong electrolyte and the unknown solution is a weak electrolyte. The concentration of the unknown solution determined by measuring the electrical conductivity of the solution at various points during the titration.
What are the Applications of Conductometric Titration?
The applications of conductometric titration are many and varied. Some of the most common applications include determining the concentration of an unknown substance in a solution, titrating a solution to a specific pH, and determining the amount of a specific substance in a sample. Conductometric titration can also used to determine the purity of a sample.
Conductometric Titration of Strong Acid with a Strong Base
- A titration of a strong acid with a strong base is a common type of acid-base titration. In this experiment, a known volume of a strong acid titrated with a strong base. The concentration of the acid can determined by measuring the pH of the solution at various points during the titration.
- The figure below shows the titration of a strong acid with a strong base.
- The titration curve for a strong acid with a strong base is a straight line. The pH of the solution is constant at 7.0 until the acid completely neutralized. The pH then increases as the base added.
Conductometric Titration of Weak Acid with a Strong Base
The equivalence point of the titration reached when the concentration of the weak acid is equal to the concentration of the strong base. The equivalence point can detected by measuring the pH of the solution.
What are the Different Types of Conductometric Titration?
The three types of conductometric titration are potentiometric titration, coulometric titration, and voltametric titration.
Advantages of Conductometric Titration
- It is a rapid and convenient method for the determination of the amount of an acid or a base in a solution.
- Also an accurate method.
- It is a precise method.
Limitations of Conductometric Titration
- There are a few limitations of conductometric titration.
- Additionally, the concentration of the analyte must be above a certain level for the method to be effective.
