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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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Presentation Transcript
Density

Density

Definition

Symbol

Units

Equation

Examples


Definition
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
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


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