This is a collection of ten chemistry test questions with answers dealing with the density of matter. The answers for each question are at the bottom of the page.

### Question 1

500 grams of sugar occupies a volume of 0.315 L. What is the density of the sugar in g/mL?

### Question 2

The density of a substance is 1.63 g/mL. What is the mass of 0.25 L of the substance in grams?### Question 3

The density of pure solid copper is 8.94 g/mL. What volume does 5 kg of copper occupy?### Question 4

What is the mass of a 450 cm³ block of silicon if the density of silicon is 2.336 g/cm³?### Question 5

What is the mass of a 15 cm cube of iron if the density of iron is 7.87 g/cm³?### Question 6

Which of the following is greater?a. 7.8 g/mL or 4.1 μg/μL

b. 3 x 10

^{-2}kg/cm

^{3}or 3 x 10

^{-1}mg/cm

^{3}

### Question 7

Two liquids, A and B, have densities 0.75 g/mL and 1.14 g/mL respectively.When both liquids are poured into a container, one liquid floats on top of the other. Which liquid is on top?

### Question 8

How many kg of mercury would fill a 5 L container if the density of mercury is 13.6 g/cm³?### Question 9

How much does 1 gallon of water weigh in lbs?Given: Density of water = 1 g/cm³

### Question 10

How much space does 1 lb of butter occupy if the density of butter is 0.94 g/cm³?### Answers

1. 1.587 g/mL2. 407.5 g

3. 559 mL

4. 1051.2 g

5. 26561 g or 26.56 kg

6. a. 7.8 g/mL b. 3 x 10

^{-2}kg/cm

^{3}

7. Liquid A. (0.75 g/mL)

8. 68 kg

9. 8.33 lbs (2.2 kg = 1 lb, 1 L = 0.264 gal)

10. 483.6 cm³