Name__________________________
Density Worksheet
**Be sure to place **units** after each number, use **significant figures**, & **show your work** for all calculations.
1.
Define mass?
2.
Define volume?
3.
Define density and show the formula for calculating density.
4.
Why does changing the shape of an object have no effect on the density of that object?
5.
Aluminum is used to make airplanes. Cast iron is used to make weightlifting equipment. Explain why the densities of these metals make them useful for these purposes?
6.
What is the density of water? Remember for water 1 g = 1 ml = 1 cm 3
7.
Why does an air bubble rise to the surface of a glass of water?
8.
Calculate the densities of the following objects. a.
Object A length = 6.0 cm width = 3.0 cm height = 1.0 cm mass = 36 g i.
volume = _________________ density = ______________________ b.
Object B length = 10.0 cm width = 5.0 cm height = 2.0 cm mass = 300. g i.
volume = _______________ density = ______________________ c.
Object C Use the water displacement method to determine the density of object C (silly putty). i.
initial water level in graduated cylinder = 25.0 ml ii.
final water level after placing silly putty into graduated cylinder = 29.0 ml iii.
mass of silly putty = 8.51 g iv.
volume = _________________________________ density = __________________
9.
Which of the following materials will float on water (density 1 g/ml)? i.
air = 0.001 g/cm 3 vi.
steel = 7.81 g/cm 3 ii.
corn oil = 0.93 g/cm 3 vii.
rubber = 1.34 g/cm 3 iii.
glycerine = 1.26 g/cm 3 iv.
corn syrup = 1.38 g/cm 3 viii.
ice = 0.92 g/cm 3 ix.
water = 1.00 g/cm 3 v.
wood = 0.85 g/cm 3
10.
Assuming the materials don’t mix, show how the materials would "stack up" in a graduated cylinder.

11.
Calculate the density (in the units given) of each of the following: a.
252 mL of a solution with a mass of 500. g b.
252 mL of a solution with a mass of 500 g c.
A 6.75 g solid with a volume of 5.35 cm 3 d.
50.0 mg of a gas which occupies a volume of 0.0064 L e.
A substance with a mass of 7.55 x 10 4 kg and a volume of 9.50 x 10 3 L
12.
Calculate the volume (in mL) of each of the following: a.
26.5 g of a solution with a density of 7.48 g/mL b.
A 3.400 kg solid with a density of 10.74 g/mL
13.
Calculate the mass (in g) of each of the following: a.
A solid with a volume of 1.68 L and a density of 9.2 g/mL b.
80 mL of a solution with a density of 5.80 g/cm 3 c.
A solid with a density of 2.65 g/mL and dimensions of 2.5 cm x 2.5 cm x 2.5 cm
14.
The mass of an empty flask is 49.74 g. What is the mass of the flask filled with acetone (d = 0.792 g/mL) if the same flask weighs 75.2 g when filled with water? (Hint: Determine the mass of water in the flask. Then use the density of water to determine the volume of the flask. Then use the volume of the flask with the density of acetone to determine the mass of acetone)
15.
An empty flask has a mass of 123.4 g. When the flask has some water added to it, the mass is 211.6 g. If 10.0 g of zinc (d = 7.14 g/cm 3 ) are added to the flask filled with water, what is the new mass of the flask?