【Answer】Therefore, the mass in said substance is 375 kilograms.
[tex]\red{ {\hspace{50 pt}\above 1.2pt}\boldsymbol{\mathsf{Procedure}}{\hspace{50pt}\above 1.2pt}}[/tex]
This is an exercise on fluids and their fundamental characteristics.
We start to solve, obtaining the data:
Conversion from liters to m³
[tex]\boldsymbol{1500\not{l}*\dfrac{1 \ m^{3} }{1000\not{l} }=1.5 \ m^{3} }[/tex]
To calculate mass: multiply density by volume.
[tex]\boldsymbol{m=d*v \ \ \to \ \ \ Formula}[/tex]
We clear our data in the formula:
[tex]\boldsymbol{m=250\dfrac{kg}{\not{m^{3}}}*1.5\not{m^{3}} }[/tex]
[tex]\boldsymbol{m=375 \ kg}[/tex]