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 liters. What is the density of the sugar in grams per milliliter?

### Question 2

The density of a substance is 1.63 grams per milliliter. What is the mass of 0.25 liters of the substance in grams?

### Question 3

The density of pure solid copper is 8.94 grams per milliliter. What volume does 5 kilograms of copper occupy?

### Question 4

What is the mass of a 450 centimeter³ block of silicon if the density of silicon is 2.336 grams/centimeter³?

### Question 5

What is the mass of a 15 centimeter cube of iron if the density of iron is 7.87 grams/centimeter³?

### Question 6

Which of the following is greater?

a. 7.8 grams per milliliter or 4.1 μg/μL

b. 3 x 10^{-2} kilgrams/centimeters^{3} or 3 x 10^{-1} milligrams/centimeter^{3}

### Question 7

Two liquids, A and B, have densities 0.75 grams per milliliter and 1.14 grams per milliliter 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 kilograms of mercury would fill a 5-liter container if the density of mercury is 13.6 grams/centimeter³?

### Question 9

How much does 1 gallon of water weigh in pounds?

Given: Density of water = 1 gram/centimeter³

### Question 10

How much space does 1 pound of butter occupy if the density of butter is 0.94 grams/centimeter³?

### Answers

1. 1.587 grams per milliliter

2. 407.5 grams

3. 559 milliliter

4. 1051.2 grams

5. 26561 grams or 26.56 kilograms

6. a. 7.8 grams per milliliter b. 3 x 10^{-2} kilograms/centimeter^{3}

7. Liquid A. (0.75 grams per milliliter)

8. 68 kilograms

9. 8.33 pounds (2.2 kilograms = 1 pound, 1 liter = 0.264 gallons)

10. 483.6 centimeters³