Density Calculations - Notes PDF

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Density Calculations Complete the following questions in the space provided. Show ALL your work. Remember to include proper UNITS! Check your answers with the ones provided to make sure you’re on the right track. Part A: Calculating density 1. A piece of metal has a mass of 3500 kg and a volume of 4.0 m3. What is the density of the metal (in kg/m3)?

3. Calculate the density of the unknown liquid (g/mL) given the following data:  Volume of unknown liquid: 40 mL  Mass of empty graduated cylinder: 40 g  Mass of graduated cylinder and liquid: 72 g

Part B: Calculating mass or volume from density 1. Given that the density of alcohol is 790 kg/m 3: (a) Calculate the mass of 50 m3 of alcohol.

(b) What volume would be occupied by 1580 kg of alcohol?

2. A rectangular solid with a mass of 3040 g measures 8.0 cm x 20.0 cm x 10.0 cm. What is the density in g/cm3?

4. A ring is dropped into a liquid inside a graduated cylinder with an initial volume of 35 mL. The final volume of the cylinder reads 80 mL. The mass of the ring is 396 g. (a) What is the density of the ring? (b) How can you tell if the ring is pure gold?

2. Given the density of lead (11.3 g/cm3) calculate: (a) the mass when the volume is 5.0 cm3.

(b) the volume when the mass is 5.0 g.

3. A stone is placed at the bottom of an empty graduated cylinder. When 35 mL of water is poured into the cylinder, the water level reaches the 50 mL mark. If the density of the stone is 3.0 g/cm 3, find its mass.

4. The density of steel is 8 g/cm3. If the total mass of a ship is 32 205 000 kg, what volume of steel is needed to make this ship? State your answer in m3.

5. A piece of nickel has a mass of 130 g and a density of 8900 kg/m 3. A piece of magnesium has a mass of 60 g and a density of 1700 kg/m3. Which piece of metal will displace more water from an overflow can?

Answers Part A 1. 2. 3. 4.

Part B

1. (a) 39 500 kg (b) 2 m3 875 kg/m 3 1.9 g/cm3 2. (a) 56.5 g (b) 0.44 cm3 0.8 g/mL 3. 45 g (a) 8.8 g/mL 3 4. 4025.625 (b) Check the density with themvalue listed on the5.periodic table magnesium...