Question

What physical quantity do you obtain when you divide
molar mass (Mm) by molar volume (Vm)?

Answer 1

Answer:

The mass density (ρ)

Explanation:

The molar volume (Vm) is the volume that a mole of an element or compound occupies at standard temperature and pressure STP

The molar volume can be found as follows;

$Vm = \dfrac{Mm}{\rho}$

Where;

Mm = The molar mass

ρ = The mass density

The molar mass (Mm) of an element or a compound is the ratio of the mass of the element or compound to the amount of the element or compound in the given mass

The mass density, ρ, of an element or a compound is the mass of a unit volume of the element or compound

Therefore, we have;

$\rho = \dfrac{Mm}{Vm}$

When we divide the molar mass (Mm) by the by the molar volume (Vm), we obtain the mass density (ρ).