Name: ______________________________________________ Date: _____________________
Chapter 3
Density Calculations
Calculate the following density problems. Don’t forget units! Report answers in correct number
of significant figures.
1.
A cork has a mass of 3.00 grams and a volume of 16.0 cm3. Calculate the density.
2.
A block of aluminum occupies a space of 15.0 cm3 and weighs 40.5 g. What is its density?
3.
A pencil has a density of 0.875 g/ cm3. It has a volume of 4.0 cm3. What is the mass?
4.
A lead cylinder has a mass of 550.0 grams and a density of 2.70 g/ml. Calculate the volume of
the lead cylinder.
5.
A platinum bar measures 5.0 cm long, 4.2 cm wide, and 1.5 cm thick. It has a mass of
700.0 grams.
a. Calculate the volume of the platinum bar.
b. Calculate the density of the platinum bar.
6.
A thin glass bottle holds 25 ml of liquid and has a mass of 19 grams. Calculate the density.
7. Measure the length, width, and height of each block using a ruler. Under each block you’ll
find the mass, what is the density of each block? Write the density below the block.
Block 1 – Mass = 98.6 g
Density = _______________________________
Block 2 – Mass = 147.5 g
Density = _______________________________
8. The initial volume of water in a graduated cylinder is 2 ml. An irregularly shaped
stone was lowered into this graduated cylinder and the height of the water rose to 7
ml. If the mass of the stone is 25 g, what is its density?
Name: _____________________________ Date: _________________
Chapter 3 Density
Density Problems HOMEWORK
1. Calculate the density for the following:
a.
6.75 g solid with a volume of 5.35 cm3
b. a gas with a volume of 5.30 mL and a mass of 24.10 grams
2. An aluminum cylinder has a mass of 420 grams and a density of 2.70 g/ml. Calculate the
volume of the aluminum cylinder.
3. What is the mass of ethyl alcohol that has a volume of 200.0 mL ? The density of ethyl
alcohol is 0.789 g/mL.
4. A gold bar has a mass of 7,528 grams and a density of 19.32 g/cm3. Calculate the volume
of the bar.