Question

a sheet of aluminium has a mass of 200 G and a volume of 73 cm cube calculate the density of aluminium​

Answer 1

The density of a substance tells you the mass of exactly one unit of volume of said substance.

In your case, aluminium is said to have a density of

density Al

=

2.70 g

.

cm

−

3

This tells you that every

1 mL

of aluminium has a mass of

2.70 g

.

All you have to do now is use the density of aluminium as a conversion factor to go from cubic centimenters of aluminium to grams

10.0

cm

3

⋅

2.70 g

1

cm

3

=

27.0 g

−−−−−

The answer is rounded to three sig figs.