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Do acids react with bases?

Ok so,

Todays experiment has been submitted to me by Manushree of grade 10 from JGI Schools.


Before I begin, I would like to link her own youtube channel over here, Please do support her in her endeavours.


Here's the link:


Ok, so let's begin


For this experiment you will need


- Water

- Citric Acid Powder ( Or use lemon juice )

-Some Baking Soda

-Litmus Paper


Step 1:- Take A Few Tablespoons of water and add it to a container

Step 2:- Add a tablespoon of baking soda to it and set it aside

Step 3:- Set it aside, and take a new container

Step 4:- Add some citric acid powder to it (Or substitute with lemon juice)

Step 5:- Add a tablespoon of water to it

Step 6:- Take two pieces of litmus paper and put them into the two containers

Step 7:- Notice the colour change

Step 8:- Manushree has used yellow litmus paper in her experiment, yellow litmus paper can be used to test both acids and bases


Ok let's discuss the principle behind this experiment,


In chemistry, substances can be divided into one of three distinctions.

Acids, Bases and Salts (Some exceptions are there, but for our purposes we'll set them aside)


Acids are generally characterised by a sour taste, lemon juice, vinegar, orange juice etc. are all acidic. Coffee is one such acidic substance which is bitter in taste.


Bases are generally characterised by a bitter taste Baking soda, Soap, Bleach are all examples of basic substances.


When acids and bases react with each other, they form a salt.


Salts come in many forms, the most common type of salt is probably table salt which is chemically known as Sodium Chloride.


In this experiment, Manushree has used Baking soda as the base. By dissolving it in water, we can prove it's basic nature. She has also used a tool known as litmus paper, which is a special type of paper which changes colour based on how acidic or basic a substance is. Litmus paper becomes reddish when exposed to acids and bluish when exposed to a base.

As expected, the litmus paper changes to a bright blue color when exposed to the baking soda solution proving that baking soda is in fact a base.


She has also used citric acid, which is acidic in nature. Similar to the baking soda, she dissolved it in water for easy testing. The litmus paper turns orangish red in colour as expected.


This is of course a basic explanation of this concept. Acids and bases have many more specific definitions based on a variety of chemical properties.


Here are the images


This is the baking soda

As we can see from the photo she has submitted, the litmus paper turns blue in color


Here is the citric acid powder

When this solution is tested with the litmus paper, it turns a bright red due to it's acidic nature


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