Density Problems

Front

What is density?

Back

Density is the mass of an object divided by its volume, typically expressed in grams per cubic centimeter (g/cm³) or grams per milliliter (g/mL).

Front

How do you calculate mass using density and volume?

Back

Mass can be calculated using the formula: Mass = Density × Volume.

Front

If a substance has a density of 1 g/cm³, what does that imply about its mass and volume?

Back

It implies that 1 cm³ of the substance has a mass of 1 gram.

Front

What is the formula to calculate the volume of an object using its mass and density?

Back

Volume can be calculated using the formula: Volume = Mass / Density.

Front

What is the density of water?

Back

The density of water is approximately 1 g/cm³ at 4°C.

Front

How do you find the density of an irregularly shaped object?

Back

To find the density, measure the mass of the object and then submerge it in water to find the volume of water displaced. Use the formula: Density = Mass / Volume.

Front

What is the significance of density in identifying substances?

Back

Density can help identify substances because each material has a unique density that can be used as a characteristic property.

Front

If an object floats in water, what can be inferred about its density?

Back

If an object floats in water, its density is less than that of water (1 g/cm³).

Front

What is the mass of a 2500 cm³ loaf of bread with a density of 0.2 g/cm³?

Back

The mass is 500.0 g (Mass = Density × Volume = 0.2 g/cm³ × 2500 cm³).

Front

A chef fills a 50mL container with cooking oil of density 0.87 g/mL. What is the mass of the oil?

Back

The mass is 43.5 g (Mass = Density × Volume = 0.87 g/mL × 50 mL).