Percentage Composition
Chapter Name : Some Basic Concepts Of Chemistry |
Sub Topic Code : 102_11_01_09_01 |
Topic Name : Percentage Composition |
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Sub Topic Name : Percentage Composition |
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Introduction
The percentage composition of a compound tells you the percent of the mass of each element in the compound.
Pre-Requisites:
Mass, atom, element, compound, atomic mass, molar mass
Activity:
If you have a round cake and u eat half of it. The percent you ate is 50%.
Real Life Question:
How much of hydrogen is there in water?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Percent composition | The percentage composition of a compound tells you the percent of the mass of each element in the compound. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Pie chart | Calculate the percent of the sections over the whole. |
Real life uses :
Finding the purity of a compound. Example iron ore, sterling silver, gold.
Places to visit :
Kitchen
Practical examples around us
| Examples | Explainations |
|---|---|
| A piece of cake, glass of water, any mixture | A part of any substance composing a material builds its percent composition. |
What you learn in Theory:
Percent composition tells you the percent of the mass of each element in the compound.
What you learn in Practice:
Percent composition tells about the individual masses of each component making up a substance.