Molecular Mass And Mole Concept
Chapter Name : Atoms And Molecules |
Sub Topic Code : 102_09_03_05_01 |
Topic Name : Molecular Mass And Mole Concept |
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Sub Topic Name : Molecular Mass |
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Introduction
Molecular mass is the sum of the atomic masses of all the atoms of the molecule.
Pre-Requisites:
Atom, matter, element, compound, molecule
Activity:
Compounds are represented by their chemical formulas.
Real Life Question:
How do you tell the mass of a compound?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Molecular mass | The sum of the atomic masses of all the atoms of the molecule. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Periodic table | Use the periodic table to see the symbols of elements and their atomic masses. |
Real life uses :
To calculate the mass of a molecule.
Places to visit :
Chemistry lab.
Practical examples around us
| Examples | Explainations |
|---|---|
| Water is denoted by the formula H2O | Water is denoted by the symbols for hydrogen and oxygen. It is a molecule made of hydrogen and oxygen. |
What you learn in Theory:
Molecular mass is the sum of the atomic masses of all the atoms of the molecule.
What you learn in Practice:
Compounds are identified by their chemical formulas.