Question

How would you calculate the density of methanol $\left(C{H}_{3}OH\right)$?

Answer 1

You would actually measure the mass of an accurately measured volume of methanol at a given temperature.

Explanation:

And of course, ρ,density = $\frac{Mass}{Volume}$.

For methanol at 298K, ρ=0.792⋅g⋅${ cm }^{ -3 }$.

Methanol is immiscible with petroleum ether, ρ=0.653⋅g⋅${ cm }^{ -3 }$. Would methanol float or sink on/in pet. ether?