Question

The density of copper is 8.9g/m3.What is the mass of 100cm3 of copper

Answer 1

Relative density is the density of a substance with respect to pure water at 4°C.

The density is water at 4° C is 1 g/cm^3.

As the relative density of copper is 8.9, it means that it's density is

8.9 g/cm^3

It can be converted to kg/m^3

1 g/cm^3 =

0.001 kg/ (0.000001 m^3)

So, 1 g/cm^3 = 1000 kg/m^3

Thus, density is copper is

8.9 × 1000 = 8900 kg/m^3.

Thus, density of copper is

8.9 g/cm^3 , or 8900 kg/m3

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