Calculating Density

Front

What is density?

Back

Density is the mass of an object divided by its volume, typically expressed in grams per milliliter (g/mL) or kilograms per cubic meter (kg/m³).

Front

How do you calculate density?

Back

Density = Mass / Volume.

Front

What is the formula to find the volume of an irregular object using water displacement?

Back

Volume = Final water level - Initial water level.

Front

If an object has a mass of 50 g and occupies a volume of 10 mL, what is its density?

Back

Density = 50 g / 10 mL = 5 g/mL.

Front

What happens to the water level in a graduated cylinder when an object is submerged?

Back

The water level rises by an amount equal to the volume of the submerged object.

Front

What is the density of an object that has a mass of 100 g and a volume of 25 mL?

Back

Density = 100 g / 25 mL = 4 g/mL.

Front

What is the significance of density in identifying materials?

Back

Density can help identify substances, as different materials have unique density values.

Front

If a stone displaces 30 mL of water and has a mass of 90 g, what is its density?

Back

Density = 90 g / 30 mL = 3 g/mL.

Front

What is the density of water?

Back

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

Front

How does temperature affect the density of liquids?

Back

Generally, as temperature increases, the density of liquids decreases.