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Neutralisation
Neutralisation
6.7
Neutralisation
Definition of Neutralisation
The reaction of an acid with base or alkali that forms salt and water.
Examples of Neutralisation Reaction
\(HCl + NaOH \rightarrow NaCl+H_2O\)
\(H_2SO_4 + CuO \rightarrow CuSO_4 + H_2O\)
\(2HNO_3 + Ca(OH)_2 \rightarrow Ca(NO_3)_2 + H_2O\)
Definition of Titration Method
A quantitative analysis method to determine the volume of acid needed to completely neutralise a given volume of alkali and vice versa.
Acid-Base Titration
In acid-base titration, a solution of known concentration is slowly added from a burette into a conical flask that contains a volume of alkali of unknown concentration.
Titration stops as soon as the acid-base indicator changes colour.
The point in the titration at which the acid-base indicator changes colour is known as the end point.
Apparatus Setup for Titration
The Common Indicators used in Acid-Base Titration
Indicator
Phenolphthalein
Methyl Orange
Colour in alkali
Light pink
Yellow
Colour in neutral solution
Colourless
Orange
Colour in acid
Colourless
Red
Neutralisation
6.7
Neutralisation
Definition of Neutralisation
The reaction of an acid with base or alkali that forms salt and water.
Examples of Neutralisation Reaction
\(HCl + NaOH \rightarrow NaCl+H_2O\)
\(H_2SO_4 + CuO \rightarrow CuSO_4 + H_2O\)
\(2HNO_3 + Ca(OH)_2 \rightarrow Ca(NO_3)_2 + H_2O\)
Definition of Titration Method
A quantitative analysis method to determine the volume of acid needed to completely neutralise a given volume of alkali and vice versa.
Acid-Base Titration
In acid-base titration, a solution of known concentration is slowly added from a burette into a conical flask that contains a volume of alkali of unknown concentration.
Titration stops as soon as the acid-base indicator changes colour.
The point in the titration at which the acid-base indicator changes colour is known as the end point.
Apparatus Setup for Titration
The Common Indicators used in Acid-Base Titration
Indicator
Phenolphthalein
Methyl Orange
Colour in alkali
Light pink
Yellow
Colour in neutral solution
Colourless
Orange
Colour in acid
Colourless
Red
Chapter : Acids, Bases and Salts
Topic : Neutralisation
Form 4
Chemistry
View all notes for Chemistry Form 4
Related notes
The Role of Water in Showing Acidic and Alkaline Properties
pH Value
Strength of Acids and Alkalis
Chemical Properties of Acids and Alkalis
Concentration of Aqueous Solutions
Standard Solution
Salts, Crystals and Their Uses in Daily Life
Preparation of Salts
Effect of Heat on Salts
Qualitative Analysis
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