# What is "Molar" Volume?

I had recently been studying about Molar Volume in chemistry. What is it? And is it okay to say that:
Density (ρ) = Molar Mass/Molar Volume

Note by A Former Brilliant Member
8 months ago

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Yes your statement is true. Molar Volume is the amount of space that the molar mass(amount of matter) occupies. This is what gives us formula for density @Vasu Khera :)

- 8 months ago

$V_m=\cfrac{V}{n}$. This is a constant with a given pressure and temperature for any gases. Standard pressure and $0^{\circ}C:22,41\text{dm}^3\cdot\text{mol}^{-1}$

Can you make it more clear? Please elaborate.

What should I explain? The variables?

No. I mean the concept. I'm pretty confused about it.

Not the constant. The "concept", the idea, what is it about?

$n=\cfrac{m}{M},m=\rho V\implies n=\cfrac{\rho V}{M}$, but $\rho=\cfrac{M}{V_m}\therefore n=\cfrac{V}{V_m}$

This? (some text)

No problem buddy. Don't bother.

Moles is amount of matter. Molar Volume is how much volume that Mole(matter) occupies. So if a ball with mass 1 Mole occupies $1m^{3}$ volume, then the Molar Volume is $\dfrac{1m^{3}}{1 \ mole}$ or $1m^{3} \ per \ mole$

- 8 months ago

But ain't "Mole" a number? How can something have a mass equal to a Mole?

A mole of something has 6.022 × 10²³ atoms, so the ball has 6.022 × 10²³ number of atoms we can say. 6.022 × 10²³ is Avogadro's Number :)

- 8 months ago

- 8 months ago

I thank you, buddy.

No prob, chemistry is the one thing I'm good at LOL :)

- 8 months ago