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Density Section 2.1

Density Section 2.1. Measurement of how packed or crowed object is Ratio of mass to volume. Density. Standard for comparison is water Water’s density is 1 g/mL Density < 1 g/mL FLOATS Density > 1 g/mL SINKS. Density Triangle. Density Practice.

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Density Section 2.1

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  1. DensitySection 2.1 • Measurement of how packed or crowed object is • Ratio of mass to volume

  2. Density • Standard for comparison is water • Water’s density is 1 g/mL • Density < 1 g/mL FLOATS • Density > 1 g/mL SINKS

  3. Density Triangle

  4. Density Practice • What is the density of a substance that has a volume of 50 mL and a mass of 135 grams? • What is the density of a substance that has a mass of 1572 grams and a volume of 200 mL?

  5. 3. If a substance has a mass of 273 g and a volume of 482 mL, will it float or sink? • 4. If a substance has a density of 0.24 g/mLand a mass of 1250 grams, what volume will it occupy?

  6. 5. Bismuth phosphate has a density of 6.32 g/mL. What is the mass of 25.9 cm3 of this substance?

  7. 6. The level of water in a graduated cylinder is 52.7 mL. After a solid object with a mass of 100.0 g is added, the level of the water rises to 87.4 mL. What is the density of the solid object?

  8. 7. Mercury is a liquid at room temperature. The density of mercury is 13.6 g/mL. How many mL are there is 1.00 kg of mercury? 8. Pure ethyl alcohol has a density of 0.795 g/mL. What is the mass of 450 mL of ethyl alcohol?

  9. 9. A piece of metal with a mass of 147 g is placed in a 50 mL graduated cylinder. The water level rises from 20 mL to 41 mL. What is the density of the metal? 10. What is the volume of a sample that has a mass of 20 g and a density of 4 g/mL?

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