# What is the mass of a sample of a substance with a volume of 120 mL and a density of .75 g/mL?

May 21, 2018

Why $90 \cdot g \ldots \ldots$
By definition, ${\rho}_{\text{density"="mass"/"volume}}$...
And so to get the mass we take the product, $\text{volume} \times \rho$..
And here..."mass"=120*mLxx0.75*g*mL^-1=??*g