Expressing Concentration Of Solutions
Chapter Name : Solutions |
Sub Topic Code : 102_12_02_02_02 |
Topic Name : Expressing Concentration Of Solutions |
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Sub Topic Name : Volume Percentage |
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Introduction
• Solutions containing liquids are commonly expressed in Volume percentage (V/V). • The unit tells the concentration of a solution.
Pre-Requisites:
Concentration
Activity:
Different liquid solutions have labels showing the contraction in volume percentage e.g. Alcohols, vinegar, etc.
Real Life Question:
How can you find how strong a solution is? e.g. Alcohol content in wines or beers?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Concentration | Concentration tells the strength of a solution. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Food color, water | Add food color to a glass of water in varying amounts and notice the intensity of the color change of the water in the glass. |
Real life uses :
Volume percentage concentration notation is used to mention how strong a solution is. E.g. telling the concentration of various beverages.
Places to visit :
Kitchen, beverage store.
Practical examples around us
| Examples | Explainations |
|---|---|
| Concentration of many solutions | Concentration of solutions such as alcohols, beverages is mentioned in volume percentage to show their strength. |
What you learn in Theory:
Solution concentration is measured by volume percentage.
What you learn in Practice:
All liquid solutions have concentration which is stated in volume percentage.