Density Test Questions (Wksht #3)
Chemistry Test Questions
From Todd Helmenstine
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/cm3 or 3 x 10-1 mg/cm3
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/mL
2. 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/cm3
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