The density of aluminium is 2.70g/cm^3 . if a cube of aluminum weights 13.5 grams, what is the lengths of the edge of the cube.

-

1.71 cm

Explanation: -

Density of aluminium = 2.70 g /

Mass of aluminium = 13.5 g

We know density of a substance is the mass of the substance per unit volume.

Density = Mass / volume

Volume = Mass / density

Volume of aluminium = Mass of aluminium / Density of Aluminium

= 13.5 g / 2.70 g/

= 5

We know for a cube volume =

Length of the cube =

=

=1.71 cm

Thus if the density of aluminium is 2.70g/ and the cube of aluminum weights 13.5 grams, 1.71 cm is the length of the edge of the cube

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