Density

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# Density - PowerPoint PPT Presentation

Density. Definition Symbol Units Equation Examples. Definition. A measure of the amount of matter in a given space It is a characteristic property It is equal to the mass of a mL or a cm³ of a substance It is the mass/volume ratio. Symbol = ρ (Greek letter r ho)

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## PowerPoint Slideshow about ' Density' - elgin

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Presentation Transcript

### Density

Definition

Symbol

Units

Equation

Examples

Definition
• A measure of the amount of matter in a given space
• It is a characteristic property
• It is equal to the mass of a mL or a cm³ of a substance
• It is the mass/volume ratio

Symbol = ρ (Greek letter rho)

• Units = kg/m³ or g/cm³ or g/mL
• Equation
• Density = mass/volume
• ρ = m/V
Example

If a sample of 20 mL of acetone has a mass of 15.8 g, what is the density of the acetone in g/mL?

ρ = m/V where m = 15.8 g and V = 20 mL

ρ = 15.8 g / 20 mL

ρ = 0.79 g/mL

The density of acetone is 0.79 g/mL