Question

Calcule a densidade em g/cm3 de um material que apresenta 144 Kg e um volume de 0,008 litros

Answer 1

$\mathrm{m=144\ kg=144\times10^3\ g}\\\\ \mathrm{V=0,008\ L=8\times10^{-3}\ L}\\\\ \mathrm{1\times10^{-3}\ L\ ---\ 1\ cm^3}\\ \mathrm{8\times10^{-3}\ L\ ---\ V\ --\to\ V=8\ cm^3}\\\\ \mathrm{d=\dfrac{m}{V}=\dfrac{144\times10^3\ g}{8\ cm^3}=18\times10^3\ \dfrac{g}{cm^3}}\\\\ \boxed{\boxed{\mathbf{d=1,8\times10^4\ \dfrac{g}{cm^3}}}}$