Question

23. A 54-gram sample of an unknown material has a volume equal to 20 cm'. Based on its density,

could the sample be aluminum? Explain.

Answer 1

The density of aluminum is 2.7 g/cm³. Thus given sample is aluminum.

Step-by-step explanation:

Given data:

Mass of sample = 54 g

Volume of sample = 20 cm³

Density of sample = ?

Is the sample is aluminum = ?

Solution:

We will calculate the density from given mass and volume.

d = m/v

d = density

m = mass

v = volume

d = 54 g/ 20cm³

d = 2.7 g/cm³

From literature it is known that the density of aluminum is 2.7 g/cm³. Thus given sample is aluminum.