Density Calculations Worksheet I



Science, Gr. 9

Atoms & Elements Unit – Density

Density Calculations Worksheet I

density = mass UNITS OF DENSITY

volume solids (g/cm3) liquids (g/mL)

1. Find the density of a liquid that has a mass of 95 g in a volume of 950 mL

2. Find the density (CONVERT FIRST to g or mL)

|a) d = ? |b) d = |

|V = 100 mL |V = 0.52 L = ______ mL |

|M = 1.5 kg = ______ g |M = 500 mg = ______ g |

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WORD PROBLEMS

1. A block of aluminum occupies a volume of 15.0 mL and weighs 40.5 g. What is its density?

2. Mercury metal is poured into a graduated cylinder that holds exactly 22.5 mL. The mercury used to fill the cylinder weighs 306.0 g. From this information, calculate the density of mercury.

3. A rectangular block of copper metal weighs 1896 g. The dimensions of the block are 8.4 cm by 5.5 cm by 4.6 cm. From this data, what is the density of copper? (hint: find the volume of a block first)

4. What volume of silver metal will weigh exactly 2500.0 g. The density of silver is 10.5 g/cm3.

5. Find the mass of 250.0 mL of benzene. The density of benzene is 0.8765 g/mL.

6. A block of lead has dimensions of 4.50 cm by 5.20 cm by 6.00 cm. The block weighs 1587 g. From this information, calculate the density of lead.

7. 28.5 g of iron shot is added to a graduated cylinder containing 45.50 mL of water. The water level rises to the 49.10 mL mark, From this information, calculate the density of iron.

8. A sample of pure iron has a mass of 5.00 g. Calculate its volume. (Density Iron = 7.87 g/cm3)

9. A metal with a mass of 71.68 g occupies a volume of 8.00 cm3. Calculate the density of the metal. Using the table below then determine what metal it is.

|Metal |Density (g/cm3) |

|Aluminum |2.70 |

|Zinc |7.13 |

|Iron |7.87 |

|Copper |8.96 |

|Silver |10.49 |

|Lead |11.36 |

|mercury |13.55 |

|gold |19.32 |

10. A sample of pure copper has a volume of 3.75 cm3. Calculate its mass.

11. A metal with a mass of 1.00 kg occupies a volume of 370 cm3. Calculate the density of the metal. Using the table above, determine the identity of the metal

12. A sample of pure zinc has a mass of 4.50 g. Calculate its volume.

13. A metal with a mass of 15.00 g occupies a volume of 1.32 cm3. Calculate the density of the metal. Using the table above, determine the metal.

14. Calculate the mass of a gold bar that is 18.00 cm long, 9.21 cm wide, and 4.45 cm high.

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