Density Problems

I. Video

A. What is Density?

B. Density: A Story of Archimedes and the Gold Crown

C. Density Practice Problems

Click here for youtube video

II. Density Practice Problems

Fill in the blanks with the correct answer.

1. The ratio of an object's mass to its volume is called the _________ of the object.

2. A kilogram of lead occupies a much smaller volume than a kilogram of water because ________ has a much higher density.

3. Typically, gases have very __________ densities compared to solids & liquids.

4. The most common units for density are _____________.

5. The ____________ of an insoluble object, such as a person can be determined indirectly by measuring how much water the

object displaces.

6. Density may be used as an aid in identifying substances, because every sample of a pure substances always has the _________

density.

Using a calculator, answer the following questions. Show all work!

1. Find the density of Magnesium with a mass of 5.00 g and a volume of 2.87 mL.

2. Find the density of Aluminum with a mass of 11.0 g and a volume of 4.07 mL.

3. Find the density of Iron with a mass of 3.00 g and a volume of .380 mL.

4. Find the mass of Silver with a volume of .570 mL and a density of 10.5 g/ mL

5. Find the mass of Lead with a volume of 1.000 mL and a density of 11.34 g/cm3.

6. Find the volume of Gold with a mass of 67.62 g and a density of 19.32 g/cm3.

7. Find the volume of Salt with a mass of 10.0 g and a density of 2.16 g/cm3.

8. Find the volume of Copper with a mass of 44.8 g and a density of 8.96 g/cm3.

9. Mercury has a density of 13.60 g/cm3. What volume of mercury must be taken to obtain 225.0 g of the metal?

10. A platinum medallion has a mass of 55.64 g and a volume of 2.60 mL. What is its density?

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III. Class Assignments on Density

A. Calculating Density and Identification Exercises

B. Density Problem Set 1

C. Density Worksheet