Density Homework 2024 (1)

What is the volume of the solid in the figure? Be sure to use correct units of measurement and round to nearest tenth. Don't forget to copy and paste --> cm³

(a)  

Answer explanation

The volume of the solid is calculated as 10.5 x 5.5 x 1.2 = 69.3. The correct unit for volume is cm³, so the best choice is 69.3 cm³.

The block has a mass of 180.0 g. What is the density of the block? Be sure to use correct units of measurement. Round to the nearest 0.1 and write correct units…… --> g/cm³

(a)  

Answer explanation

The correct density of the block is calculated as mass divided by volume. The answer choice '2.6 g/cm³' is correctly formatted with units and rounded to the nearest 0.1, making it the correct answer.

A ball sinks to the bottom when you put it in a container filled with water. What does that tell you about the density of the ball?

Answer explanation

The ball sinking indicates that its density is greater than that of water. Objects denser than the fluid they are placed in will sink, while those less dense will float.

A sample of water has a mass of 13.0 grams and a volume of 13.0 milliliters (mL). What is the density of water? Round to the nearest 0.1and write correct units……. --> g/cm³

(a)  

Answer explanation

To find the density, use the formula density = mass/volume. Here, density = 13.0 g / 13.0 mL = 1.0 g/mL. Since 1 mL = 1 cm³, the density is also 1.0 g/cm³. Thus, the correct answer is 1.0 g/cm³.

A sample of metal has a mass of 94.5 grams and a volume of 7.0 cubic centimeters (cm³). What is its density? Round to the nearest 0.1and write correct units…

(a)  

Answer explanation

To find density, use the formula: density = mass/volume. Here, density = 94.5 g / 7.0 cm³ = 13.5 g/cm³. The correct answer is 13.5 g/cm³, as it includes the proper units and is rounded to the nearest 0.1.

A sample of liquid has a mass of 26.0 grams and a volume of 20.0 mL. What is its density? Round to the nearest 0.1 and write correct units… g/cm³

(a)  

Answer explanation

To find density, use the formula: density = mass/volume. Here, density = 26.0 g / 20.0 mL = 1.3 g/mL. Since 1 mL = 1 cm³, the density is also 1.3 g/cm³. The correct choice is 1.3 g/cm³.

Calculate the density of an object that has a mass of 20.0 grams and a volume of 4.0 cm³. Round to the nearest 0.1 and write correct units. g/cm³

(a)  

Answer explanation

To find density, use the formula: density = mass/volume. Here, density = 20.0 g / 4.0 cm³ = 5.0 g/cm³. The correct choice is 5.0 g/cm³.

Use the Volume in graduated cylinder in the diagram and the mass of the water by taking the difference between the before and after. Then calculate the density of the water. Round to the nearest 0.1and include correct units… g/cm³

(a)  

Answer explanation

To find the density, calculate the mass of water (10 g) using the volume difference (10 mL). Density = mass/volume = 10 g/10 mL = 1.0 g/mL. The correct answer is 1.0 g/mL.

Jorge wants to find the density of a glass marble. The tools used by Jorge to measure the glass marble are shown below. Use the information from the diagrams to calculate the density of the marble. Show your work. Round to the nearest 0.1 and include correct units… g/cm³

(a)  

Answer explanation

To find the density, use the formula: density = mass/volume. If Jorge measures the mass as 28.0 g and the volume as 10 cm³, then density = 28.0 g / 10 cm³ = 2.8 g/cm³. The correct answer is 2.8 g/cm³.

Calculate the density of the rock if the rock has a mass of 25.0 g. Round to the nearest 0.1… g/cm³

(a)  

Answer explanation

To find density, use the formula: density = mass/volume. Given mass = 25.0 g and volume = (30 - 20) mL = 10 mL, density = 25.0 g / 10 mL = 2.5 g/mL. Thus, the density is 2.5 g/cm³.