Intro Density Problems: PART 1 Name:______
Solve the following problems: Show your work. Every number needs a unit. Circle your answer.
1. A piece of metal has a mass of 32.4g and has a volume of 24.9 cm3, what is the density?
2. If a material has a mass of 77.6g and a volume of 11.5cm3, what is the density?
3. A sample has a mass of 1.02g and a volume of 1.35cm3, what is the density of the nickel?
4. A sample has a mass of 1.2g and a volume of 1.1cm3, what is the density?
5. What is the density of a substance if its mass is 36.7g and its volume is 1.57cm3?
6. What is the density a substance if its mass of 87.6g and a volume of 8.09cm3?
7. What is the density of a sample if its mass is 44.3g and its volume is 22.1cm3?
8. What is the density of a substance that has a mass of 54.2g and a volume of 3.06cm3?
9. What is the density of a substance when its volume is 51.6cm3 and its mass is 134.5g?
10. A sample has a volume of 10.2cm3 and a mass of 15.6g. What is the density of gold?
11. If a sample that has a volume of 5.25cm3 and a mass of 97.4g its density would be what?
12. A substance has a mass of 61.9g and its volume is 5.46cm3, what is its density?
Density Questions Section 2
1. Calculate the mass of a liquid with a density of 3.2g/mL and a volume of 25mL.
2. Calculate the density of a 500g rectangular block with the following dimensions: length=8cm, width=6cm, height=5cm.
3. An irregular object with a mass of 18 g displaces 2.5 mL of water when placed in a large overflow container. Calculate the density of the object.
4. A graduated cylinder has a mass of 80 g when empty. When 20 mL of water is added, the graduated cylinder has a mass of 100 g. If a stone is added to the graduated cylinder, the water level rises to 45mL and total mass is now 156g. What is the density of the stone?
5. What is the density of a piece of wood that has a mass of 125 grams and a volume of 129.4cm3?
6. A piece of wood that measures 0.30 cm by 0.60 cm by 0.40 cm has a mass of 0.80 grams. What is the density of the wood? Would the piece if wood float in water?
7. A cup of gold colored metal beads was measured to have a mass 473.76 grams. By the displacement volume of the beads was calculated to be 48cm3. Given the following densities, identify the metal.
Gold: 19.3 g/mL
Copper: 8.86 g/mL
Bronze: 9.87 g/mL
8. I threw a plastic ball in the pool for my dog to fetch. The mass of the ball was 125 grams. What must the volume be to have a density of 0.500 g/mL?
Part 3
1. Draw a density column with four layers. Label each layer using the following liquids and their density:
Water: 1.0 g/mL
Isopropyl alcohol 0.7 g/mL
Vegetable oil: 0. 8 g/mL
2. The density of water is 1 g/mL. An object will (sink or float) in the water if its density is less than water. If
the objects density is greater than water it will (sink or float).
3. Given the following substances and their densities, determine whether each substance will
sink(S) or Float (F).
a. aluminum 2.7 g/cm3_____ f. arsenic 5.7 g/cm3_____
b. helium 0.18 g/cm3_____ g. gold 19.3 g/cm3_____
c. neon 0.89 g/cm3_____ h. lithium 0.53 g/cm3_____
d. chlorine 3.2 g/cm3_____ i. uranium 3.2 g/cm3_____
e. potassium 0.86 g/cm3_____
4. Substance X has volume of 50 ml and a mass of 160 g. Will the substance sink or float?______
5. Substance Y has a volume of 140 mL and a mass of 112g. Will the substance sink or float?______