Answered

The density of aluminium is 2.7 g/cm3. Find the mass in grams of a bar of aluminum measuring 1.3 cm by 3.0 cm by 12.0 cm (hint, you must first calculate the volume of the cube).

Answer :

Density = mass / volume
Density = 2.7 g/cm^3
Volume = 3 x 12 x 1.3 = 46.8 cm^3

Mass = Density x Volume
Mass = 2.7 x 46.8 = 126.36 grams = Answer

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