Iron has a density of 7.9 g/cm3. what is the mass of a cube of iron with the length of one side equal to 55.0 mm?

Mass, m = 1.31 kg

Explanation:

It is given that,

Density of iron,

Side of cube, a = 55 mm = 5.5 cm

We need to find the mass of the cube of iron. Mass per unit volume is called the density of the substance. It is given by :

m = 1314.36 grams

or

m = 1.31 kg

So, the mass of the iron cube is 1.31 kg. Hence, this is the required solution.

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