Table of Contents
What is Titration?
Titration is a laboratory technique that is used to determine the concentration of an unknown acid or base. The technique involves adding a known volume of an acid or base to a sample of the unknown acid or base. The endpoint of the titration is the point at which the acid or base has been added in excess and no more change in pH is observed. The concentration of the unknown acid or base can then be calculated from the volume of the acid or base and the molarity of the acid or base.
Acid-Base Titration
This is a process that is used to determine the concentration of an acid or a base in a solution. It involves adding a known amount of base to a known volume of acid and then measuring the pH of the solution. The pH will change as the base is added and the concentration of the acid or base can be determined from the change in pH.
Titration chemistry in detail
A titration is a chemistry experiment in which a solution of known concentration (the titrant) is slowly added to a solution of unknown concentration (the analyte) until the two solutions are equivalent in volume. The equivalence point is the point at which the two solutions are exactly the same. The equivalence point is also the point at which the analyte is fully titrated.
A titration curve is a graph of the titrant’s concentration versus volume. The curve starts at the titrant’s concentration (0 volume) and rises as the titrant is added to the analyte. The curve reaches the equivalence point at the point where the two solutions are equal in volume. The curve then falls as the titrant is diluted by the addition of excess analyte.
The titration curve can be used to determine the concentration of the analyte. The point at which the curve reaches its highest point is the point of equivalence. The concentration of the analyte at the point of equivalence can be calculated by dividing the titrant’s concentration by the volume of the equivalence point.
pH range of some common acid-base indicators
The pH range of some common acid-base indicators are as follows:
Litmus paper: pH range of 4 to 10
Methyl red: pH range of 4.2 to 6.8
Bromothymol blue: pH range of 7.0 to 8.6
Thymol blue: pH range of 7.4 to 8.6
Redox is a process that involves the transfer of electrons between two atoms or molecules. In chemistry, redox reactions are always accompanied by a change in oxidation state.
Precipitation is the process of forming a solid from a liquid. Precipitation can occur when two solutions are mixed together and the ionic compounds in the two solutions react to form a solid.
Complexometric is a type of precipitation reaction that occurs when two solutions are mixed together and a covalent compound is formed. The covalent compound then precipitates out of solution.
