Name:______
Chemistry – Density Worksheet
Directions: Complete the following problems using the density equation and the knowledge you have gained in this course.
Density = mass/volume
1. What is the density of a solution that has a mass of 122 grams and occupies a volume of 189 milliliters?
2. Copper has a density of 8.94 grams per cubic centimeter. If a piece of copper has a mass of 250 grams, what is the volume of the copper piece?
3. Tin has a density of 7.28 grams per cubic centimeter. If a piece of tin has a volume of 19.5 cubic centimeters, what is the mass of the tin?
4. A graduated cylinder contains two solutions that form two distinct layers. Liquid B sits at the bottom of the graduated cylinder with Liquid A sitting above it. A pipette is used to add a small amount of Liquid C to the graduated cylinder. The following diagram shows the before and after situation.
Discuss the density of Liquid C in comparison to Liquids A and B.
5. A 2.303 gram sample of metal has a density of 7.19 g/mL. What is the volume of this metal sample? What type of metal is it?
6. A 210.93 gram sample of metal has a volume of 23.7 cm3. What is the density of this metal? What type of metal is it?
7. An unknown clear and colorless liquid has a mass of 12.54 grams and takes up 10.23 mL in a graduated cylinder. What is the density of this liquid? Could this unknown liquid be water? Explain.
8. A student wants to identify the main component in a commercial liquid cleaner. He finds that 35.8 mL of the cleaner has a mass of 28.1 grams. Of the following possibilities, which is most likely the main component of the liquid cleaner?
SubstanceDensity, g/mL
Chloroform1.483
Diethyl ether0.714
Iron7.86
Isopropyl alcohol0.785
9. If a 52.4 gram piece of iron is added to 75.0 mL of water in a graduated cylinder, to what level will the water in the cylinder rise? Use iron’s density from #8.
10. For a material to float on the surface of water, the material must have a density less than that of water (1.0 g/mL) and must not react with water or dissolve in it. A spherical ball has a radius of 0.50 cm and weighs 2.0 grams. Will this ball float or sink when placed in water?
11. Use the following information to calculate the density of a can of Coke and a can of
Diet Coke. Use these calculations determine whether each will float on or sink in water.
Comparison of:Classic Coke / Diet Coke
355 mL / 355 mL
Water = 355 g / Water = 355 g
Sugar = 39 g / Sugar = 0 g
Nutra Sweet = 0 g / Nutra Sweet = 0.1g
Tot. Mass = 394 g / Tot. Mass = 355.1 g