What Is A Solution?
Chapter Name : Is Matter Around Us Pure? |
Sub Topic Code : 102_09_02_02_01 |
Topic Name : What Is A Solution? |
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Sub Topic Name : Concentration Of A Solution |
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Introduction
Definitions for concentration of solution.
Pre-Requisites:
Basic knowledge about solution, solvent and solute.
Activity:
Take a beaker of water, start adding sugar and mixing until you reach saturation. Again add sugar and observe whether or not sugar dissolves more?
Real Life Question:
Mix 10gms of sugar to 100ml of water and find out mass by volume percentage of solution.
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Solubility | The amount of solute the can be dissolved in the solution at a certain fixed temperature is called solubility |
| Mass by mass percentage | Mass of the solute*100/mass of solution |
| Mass by volume percentage | Mass of the solute*100/volume of solution |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Saturation limitation at different temperature | Explain the limitation of solute dissolving in solution until a rise in temperature is observed. |
Real life uses :
Adding appropriate sugar in water while making tea.
Practical examples around us
| Examples | Explainations |
|---|---|
| Adding sugar and mixing, after sometime we observe that more sugar doesn’t get dissolved in the solution. Why? | This is because saturation is reached and no more solute can be dissolved into the solution unless we increase the temperature. |
What you learn in Theory:
Concentration, solubility.
What you learn in Practice:
Different ways of depicting the concentration of solute or solvent in a solution.