The density of ethanol, a colorless liquid that is commonly known as grain alcohol, is 0.798 g/mL. How would you calculate the mass of 17.4 mL of the liquid?

Simply mulitply the volume by the . As we shall see, this is dimensionally consistent.

##"density "rho## ##=## ##"Mass"/"Volume"##, and thus units of ##g*mL^-1## are reasonable.

For this problem:

##17.4*cancel(mL)xx0.798*g*cancel(mL^-1)## ##~=## ##14*g##