Density Calculation Quiz

What is the equivalent of 1 meter in millimeters?

How many liters are in 1 cubic meter?

Which of the following represents the conversion from kilometers to miles?

What is the mass of 1 metric ton in kilograms?

Which unit is equal to 1 atmospheric pressure?

What is the value of Avogadro's number?

How many seconds are in one hour?

Which of the following correctly converts degrees Celsius to Kelvin?

Which statement best explains why a bowling ball feels heavier than a volleyball of the same size?

What is the density of an object that has a mass of 5 kg and a volume of 50 cm³?

How is density calculated?

What does a higher density indicate about the particles of matter?

If an object has a mass of 300 g and a volume of 30 mL, what is its density?

What is the density of a substance with a mass of 35 g and a volume of 2500 mL?

Which of the following statements correctly describes the relationship between density and the arrangement of particles in matter?

If a block of aluminum has a mass of 8.1 g and a volume of 3 cm³, what is its density?

What is the mass of 75 mL of water given that its density is 1 g/mL?

Which of the following explains why helium balloons rise in the air?

What can be deduced about the volume of a piece of iron given its mass of 31.6 g and a density of 7.9 g/mL?

When comparing a bowling ball and a volleyball of the same size, which property accounts for the bowling ball feeling heavier?

What is the density of diamonds if the mass is 1.0 g and their established density is 3.5 g/cm³?

Density is defined as mass per unit volume, with units commonly measured in g/mL or g/cm³.
Different materials exhibit varying densities, impacting their physical properties and behaviors.

The formula for density: Density = Mass / Volume.
To solve density problems, follow these steps:
- List given values (mass and volume).
- Use the formula and rearrange if necessary to solve for the unknown.
- Substitute values and compute, ensuring units are included.

Example 1: Aluminum block
- Mass: 8.1 g, Volume: 3 cm³
- Calculate: D = 8.1 g / 3 cm³ = 2.7 g/cm³
Example 2: Water
- Density: 1 g/mL, Volume: 75 mL
- Calculate mass: Mass = Density × Volume = 1 g/mL × 75 mL = 75 g
Example 3: Iron
- Mass: 31.6 g, Density: 7.9 g/mL
- Calculate Volume: V = Mass / Density = 31.6 g / 7.9 g/mL = 4.0 mL
Example 4: Substance in a flask
- Volume: 2500 mL, Mass: 35 g
- Density = 35 g / 2500 mL = 0.014 g/mL
Example 5: Diamond
- Density: 3.5 g/cm³, Mass: 1.0 g
- Calculate Volume: V = Mass / Density = 1.0 g / 3.5 g/cm³ = 0.286 cm³

Density indicates how closely packed particles are within a substance.
Greater particle packing results in higher density. Ex: Bowling ball vs. volleyball: despite similar size, the bowling ball's material is denser.
Density differences explain various phenomena, like why helium balloons rise or how ocean currents operate.

Gas Law Constant: R = 8.3145 J/K.mol
Speed of Light: c = 2.9979 x 10⁸ m/s
Planck’s Constant: h = 6.626 x 10⁻³⁴ J.s
Avogadro’s number: N = 6.022 x 10²³ atoms or molecules/mol
STP: 273 K (0 °C) and 1 atm of pressure
Mass of particles:
- Electron: 9.109 x 10⁻³¹ kg
- Proton: 1.673 x 10⁻²⁷ kg
- Neutron: 1.675 x 10⁻²⁷ kg