Density is defined as mass per unit volume.
It is a measure of how tightly packed and how heavy the
molecules are in an object.
Density is the amount of matter within a certain volume.
Density
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Density: A Hands-On Introduction with Exercises, Schemes and Mind Maps of Chemistry
A clear and concise introduction to the concept of density, explaining it as mass per unit volume. It uses visual aids and examples to illustrate the concept, making it easy to understand. The document also includes practice problems for students to work on, reinforcing their understanding of density.
Typology: Schemes and Mind Maps
2024/2025
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Density is defined as mass per unit volume.
It is a measure of how tightly packed and how heavy the molecules are in an object.
Density is the amount of matter within a certain volume.
Density
Which one is more dense?
Demonstration: People in a square
How about this: Which square is more dense?
To find the density
3- Divide Density = Mass g Volume c³
1- Find the mass of the object
2- Find the volume of the object
1- Find the mass of the object
ALWAYS REMEMBER UNITS!
- Find the mass of the object
- Find the volume of the object
- Divide : Density = Mass ÷ Volume
To find density:
Ex. If the mass of an object is 35 grams and it takes up 7 cm 3 of space, calculate the density.
Let’s try some density problems together
Work on these problems with your neighbor
1 Frank has a paper clip. It has a mass of 9g and a volume of 3cm 3. What is its density?
- Frank also has an eraser. It has a mass of 3g, and a volume of 1cm 3. What is its density?
- Jack has a rock. The rock has a mass of 6g and a volume of 3cm 3. What is the density of the rock?
- Jill has a gel pen. The gel pen has a mass of 8g and a volume of 2cm 3. What is the density of the rock?