Neutralisation

Here, we will talk about Neutralisation.

Table of Contents

Definition of Neutralisation 

What is Titration?
Neutralisation Real Life Examples
How to do Titration?

What is Neutralisation?

Neutralisation

Neutralisation is a process, in which when an acid is added to base or alkali to produce salt and water.

Neutralisation can be done in Laboratory. The process is called Titration.

The apparatus used in Titration are :

• Retord Stand and Clamp
• Burette
• Conical Flask
• White Tile ( As Secondary Apparatus )

And the Materials used in Titration are :

• Acid
• Alkali
• Indicator

Lets say Hydrochloric Acid is our Acid, and Sodium Hydroxide is our Alkali.

General Equation :

Acid + Alkali → Salt + Water

Word Equation :

Hydrochloric Acid + Sodium Hydroxide → Sodium Chloride + Water

Chemical Equation :

HCl + NaOH → NaCl + H₂O

Some of the real life examples of Neutralisation are :

Cause	What is used to treat
Bee sting  ( Acidic )	Soap, Toothpaste or Baking Soda ( All of it are Alkaline )
Wasp Sting ( Alkaline )	Lemon, Lime or Vinegar ( All of it are Acidic )
Gastric ( Too much acid in stomach ) ( Acidic )	Antacid ( A.K.A Milk of Magnesia ) ( Antacid is Alkaline )
Acidic Soil ( Acidic )	Spray Lime ( A.K.A Calcium Hydroxide ) ( Lime is Alkaline )

A brand for Milk of Magnesia

Next, we move on to Neutralisation in laboratory.

Neutralisation in laboratory has a name, but not called as "Neutralization in Laboratory", it is called Titration. The Apparatus used are as shown here, and the word equations are as shown here.

To achieve Titration, there is only 5 somehow easy steps. These steps are shown below : 

1. Titrate Acid into Alkali and Indicator.
2. Wait till it reaches the Neutralisation point ( pH 7, as shown on indicator )
3. Repeat Procedure 1 to 2 for 3 times to get a more accurate result. Add the number from the 3 tries and divide it by 3 to get the average amount of acid to neutralise alkali.
4. Repeat without indicator
5. Record all the results.

Here is an example in case you gotten the results and you don't know what to do.

Neutralisation, Set up as shown in the picture.

Repeat procedure 2 to 3 times for accuracy.

Record the results like this :

	1	2	3	4
Alkali	25	25	25	25
Acid	23	24	23	23.33

How did you get the Results at number 4?

Simply divide Results at 1, 2, 3 together to get the results and that would be the average!

Conclusion :

Acid + Alkali = NEUTRALISATION!

This is the end of Neutralisation

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