Name: __________________________ Pd: _____
Density WS 2: Calculations
Use the data provided and density equations to help you complete the rest of the table. Show all work below the table.
Object
Mass (g)
Volume (cm3)
Density (g/cm3)
EX: Water
50
50
1.00
Solid Lead
454
20
Pine Wood
30
Liquid Ethyl Alcohol
1.
1.
2.
3.
0.50
400
2.
0.81
3.
3
3
You are given two solid, 1 kilogram cubes. One is made of aluminum (ρ = 2. 7 𝑔/𝑐𝑚 ); the other is gold (ρ = 19. 3 𝑔/𝑐𝑚 ).
4. Which of the two has a greater volume? Explain your solution:
Aluminum
Gold
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3
5. Which of these would float in liquid water (ρ = 1. 00 𝑔/𝑐𝑚 )?
(circle all)
aluminum
gold
neither
both
6. Which of these would float in liquid mercury (ρ = 13. 6 𝑔/𝑐𝑚 )? (circle all)
aluminum
gold
neither
both
3
7. Explain your selections:
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8. A lucite cube has a mass of 142.5 g and a width of 4.9 cm. Would the cube float in water? HINT: Calculate the volume of the cube.
3
A graduated cylinder has 54 mL of water. A steel ball (ρ = 7. 8 𝑔/𝑐𝑚 ) is dropped in and sinks, raising the water level to 70 mL.
9. What is the volume of the ball?
10. What is the mass of the ball?