Question

ce masa are un litru de ulei alimenetar

Answer 1

$V=1 \ l=1 \ dm^3 \\ \rho=0,900 \ kg/dm^3 \\ \boxed{m-?} \\ \bold{Rezolvare:} \\ \boxed{\rho= \frac{m}{V} } \\ \Rightarrow m= \rho \cdot V \\ m=1 \ dm^3 \cdot 0,900 \ kg/dm^3 \\ \Rightarrow \boxed{0,9 \ kg}.$