# 10-Density Calculations WS

```Density Calculations Worksheet
Learning Target
Students will calculate density of objects using dimensional analysis.
Textbook Section
2.2
Directions:
1. Find the density of ethyl alcohol if the volume is 80. mL and the mass is 1.6 g.
2. A sample of aluminum has a mass of 11.1 g and a volume of 3.90 mL.
Determine the density of aluminum.
3. Using the information provided in the table as the correct value for densities, determine the percent error for the
density of aluminum determine in problem 2.
4. A 3.00 cm x 4.52 cm x 6.71 cm brick has a mass of 985 grams. First determine the volume of the brick, then
determine the density.
5. Determine the mass of a gold block that has a volume of 34.2 mL. Use the table for the density value.
6) 21.8 g
7) 71 g
8) 2.52 g; 336 g
9) 10.8 g/mL
10) 21.2 L; 153 L
6. Calculate the mass of a copper wire with a volume of 2.43 mL. Use the density in the table on the other side of
the paper.
7. A sample of copper (Cu) has a density of 8.92 g/cm3 and measures 4.0 cm long, 2.0 cm high and 1.0 cm thick.
What is the mass in grams of this block of copper?
8. What is the mass of a 17.4 mL piece of styrofoam? What is the mass of a piece of gold with the same volume?
Use the density values provided in the table.
9. What volume would 123.4 g of lead occupy given that is has a density of 11.4 g/mL?
10. How large [what volume?] would a balloon filled with 25.00 grams of air be? How about a balloon filled with
25.00 grams of helium? Use the density values of air and helium provided in the table.
1) 0.020 g/mL
2) 2.85 g/mL
3) 21%
4) 10.8 g/cm3
5) 660. g
```