Find the mass of a piece of copper that occupies the a volume of 250cm3 given that the density of copper is 2.7g/cm3
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Don't go on formulas directly as they confuses beginners.
Solve by unitary method .
Mass of 1 cm^3 is 2.7 g
Mass of 2 cm^3 is 5.4 g ( double the units)
Similarily ,
Mass of 250 cm^3 is 2.7 × 250 g
= 675 grams.
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