Answer
The volume in SI system is 2.70 $ *{10^{3}}$ $\frac{kg}{m^{3}}$
Work Step by Step
The density 2.70 g/cm3 expressed in SI unit, should be converted to kg/m3.
We know that 1g = $10^{-3}$kg and
1cm3 = $(10^{-2})^{3}$ m3= $10^{-6}$ m3.
So 2.70 $\frac{g}{cm^{3}}$ = 2.70 $\frac{10^{-3}kg}{10^{-6}m^{3}}$
2.70 $\frac{10^{-3}kg}{10^{-6}m^{3}}$ = 2.70 ${10^{-3}}*{10^{6}}$ $\frac{kg}{m^{3}}$
So the volume in SI system is 2.70 $*{10^{3}}$ $\frac{kg}{m^{3}}$
