Concepts

Class 9
Chapter 2 Class 9 - Is Matter Around Us Pure

 Saturated Solution Unsaturated Solution Solution contains the maximum amount of dissolved solute Solution contains less than maximum amount of dissolved solute More solute cannot be added without raising the temperature More solute can be added without raising the temperature Example : Solubility of Salt is 36gm (at 20 degree celsius) If we mix 36 gm of salt in 100 gm of water Then, it becomes a Saturated Solution Example : Solubility of Salt is 36gm (at 20 degree celsius) If we mix 30 gm of salt in 100 gm of water Then, it becomes a Unsaturated Solution (Anything less than 36 gm would work)

Note : A supersaturated solution contains more than the maximum amount of solute that can be dissolved at that temperature. It is unstable and the solute will usually begin to crystallize, especially if disturbed.

Example : A solution of 40g Salt in 100 g water is Super Saturated Solution

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