sign in sign up
<<
Home , Density

NAME ______PER ______

CALCULATING DENSITY

Density of Common 8.96 g/cm3 19.32 g/cm3 7.87 g/cm3 11.36 /cm3

1. A substance has a of 1370.3 (g) and a of 71 cubic centimeters (cm3). Using the table above, what is this substance?

A Iron B Lead C Gold D Copper

2. A substance has a mass of 375 grams (g) and a volume of 47.65 cm3. Using the table above, what is this substance?

A Iron B Lead C Gold D Copper

For questions 3 – 9, calculate the density and fill in the table.

10. What has the greater density, a cube of measuring 1cmX1cmX1cm and having a mass of 1g, or a block of measuring 2cmX3cmX1cm with a mass of 4g?

A Cube of water

B Block of plastic 11. A rock has a volume 57 cm3. Its mass is 14. Sam has to find the density of an 555.75 g. What is the density of this rock? irregularly shaped . The mass of the solid is 300.3 g. She uses water displacement to find the volume. The volume of the water alone is 100 mL. The volume of the water with the solid in it is 142 mL. What is the density of the solid?

12. Joe has to find the density of a rectangular box. He measures the width to be 6 cm, the length to be 7 cm, and the height to be 2 cm. He put the box on a balance and the mass is 15. Based on the table below, what is the 198.24 g. What is the density of the box? irregularly shaped solid in question 14 likely made of?

______

Substance Average Density

Aluminum 2.7 g/cm3

Titanium 4.5 g/cm3

3 7.15 g/cm

13. We need to find the density of a cube of 10.49 g/cm3 plastic that has sides measuring 4 cm. The mass of the cube is 279.744 g. What is the density of the cube? 16. Mr. Odum wants to know if his watch band is or silver. He measures the mass of his watch band to be 90 g. The volume of his watch band is 20 cm3. Using the table above, ______what is his watch band likely made of?

______

Use the table to help you answer questions 17 –21. 19. Mr. Valamides brought his cuff links down to 6th grade Science to find out if they were really the Average Density metal that he thought they were. We found the 0.53 g/cm3 mass to be 720.25 g. When we put the cuff links 1.85 g/cm3 into a graduated cylinder with 100 mL of water in it, the water rose 33.5 mL. Mr. Valamides was very 5.91 g/cm3 happy with the result because he knew the metal 7.26 g/cm3 was ______. 8.92 g/cm3 12.0 g/cm3 21.5 g/cm3 20. Mr. Odum was teaching Mrs. Burch how to find the volume of an unknown metal using water displacement. The picture below shows what Mrs. 17. The mass of an unknown metal is 222.5 g. Burch saw. Mrs. de Leon used water displacement to measure the volume of the . The picture below shows the volume in mL before and after the metal was added to the graduated cylinder. Find the volume and then the density. Use the table above to identify the metal.

The metal is ______

Mrs. Burch measured the mass of the metal and the balance read 145.2 g. Mrs. Burch used the table to identify the mineral as Gallium. Was she correct? ______

21. Ms. Blackmon brings in a metal that she thinks is Palladium. She gives it to Mrs. de Leon so that 18. Mr. Odum measured the next metal and found she can find out for sure. The mass of the metal is 163.8 g. The volume is 13.65 mL. Does Ms. the volume was 27 mL and mass was 14.31 g. Calculate density, then use the table above. Blackmon have the metal that she thinks she has?

The metal is ______

Part One: Calculate the densities of the following substances and write the densities in the table.

MASS VOLUME DENSITY (g/mL) SUBSTANCE

22) 12.42 g 6 mL

23) 12.19 g 23 mL

24) 11.766 g 5.3 mL

25) 7.76 g 8 mL

26) 0.783 g 0.45 mL

27) 3.02 g 2 mL

28) 13.95 g 9 mL

29) 40.137 g 5.1 mL

30) 79.21 g 8.9 mL

31) 52.45 g 5 mL

Part Two: You have just figured the densities of known substances. Look up the densities in the table below and write the corresponding substance in the table above.

NAME DENSITY NAME DENSITY

Aluminum 2.699 g/mL 1.74 g/mL

Arsenic 5.73 g/mL 13.55 g/ cm3

Calcium 1.55 g/ cm3 Nickel 8.9 g/mL

Carbon 2.22 g/mL Platinum 21.45 g/ cm3

Chlorine 1.51 g/mL 0.86 g/mL

Gold 19.32 g/ cm3 Silver 10.49 g/mL

Iodine 4.93 g/mL 0.97 g/mL

Iron 7.87 g/mL 2.07 g/ cm3

Lead 11.34 g/ cm3 Lithium 0.53 g/mL