SEPAERATION OF SUBSTANCES - POST -8

SEPARATION OF SUBSTANCES  BLOG 8 

 Let's begin with a video clipping today to re in force  what we do know about  Solutes and Solvent.

https://www.youtube.com/watch?v=e-2EoyDYamg

a) Solvent:

It is a substance that dissolves a solute to form a solution. 

b)  Solute -A solute is any substance which is dissolved in water.

Water is also known as the UNIVERSAL SOLVENT. WHY?

 Because it can dissolve almost everything into it.

Therefore, Solute + Solvent ⇨ Solution

https://www.youtube.com/watch?v=PXdbwMc4d0M

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  Click on the link below that explains why WATER is often called A UNIVERSAL SOLVENT.

 https://www.youtube.com/watch?v=PXdbwMc4d0M

Can you identify the solvent and solute in the following solutions: (Orally)

Salt, water, Coke, Chocolate milk,

 The gif below shows a  Purple  crystalline substance - Potassium per manganate dissolving in water.

  

 T T

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  Click on the link below that  demonstrates that  oil and water are immiscible.

 https://www.youtube.com/watch?v=MXmmgborONQ

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DO THE QUESTIONS GIVEN below  IN YOUR NOTEBOOK.

 ques) Define:

1. Soluble: The solid  substance which dissolves  in water or any other solvent E.g. Sugar, Salt, soap, jaggery ( GUD )

  2) Solvent : The liquid which dissolves the solid substance ( solute ) is termed the solvent.

3) Insoluble substance: The substances which do not dissolve in water are said to be insoluble in water.E.g. Chalk, sand, etc.

4 ) Soluble substance  : A substance  which dissolves in a liquid / solvent is said to be soluble in that solvent.

5) Miscible Liquids: When two liquids dissolve in each other they are said to be miscible.

E.g. Alcohol in Water.

 6) Immiscible Liquids: When two liquids do not dissolve in each other they are said to be immiscible . eg oil and water, petrol and water, diesel  and water, kerosene oil  and water.