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Density

Density. Chemistry Mrs. Coyle. Density. Density= Mass Volume D= m V. Mass. Mass : Amount of matter in a substance. Don’t confuse with weight. Weight: the force with which the earth pulls on the substance. Question. Which weighs more?

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Density

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  1. Density Chemistry Mrs. Coyle

  2. Density Density= Mass Volume D= m V

  3. Mass • Mass: Amount of matter in a substance. • Don’t confuse with weight. • Weight: the force with which the earth pulls on the substance.

  4. Question Which weighs more? 50 kilograms of iron Or 50 kilograms of feathers

  5. Question Which has a greater density? iron Or feathers

  6. Common Units of Density Density= Mass Volume g/mL = g/cm3 kg/m3 1 cm3=1 mL 1 dm3=1L

  7. Densities of Common Substances

  8. Density as a Function of Temperature For most substances, as temperature increases the volume increases and as a result the density decreases.

  9. Density of Water

  10. Density of Water At 4oC water has its maximum density of 1g/cm3 Convert to kg/m3: 1000kg/m3

  11. Note • Density is an intensive physical property. (Does not depend on amount of matter in the sample)

  12. Density Column

  13. Galilean Thermometer

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