Question

Question #b18da

Answer 1

You need to know the density.

Explanation:

From atomic masses in the compound, you can work out the molecular mass, and thus the mass of one mole. You will then have to look up the density `rho` of the compound, whether liquid or solid.

Then, because `rho=m/V->V=m/rho`

Note:
For gases this is different. All ideal gases have the same molar volume, that only depends on temperature and pressure. At a standard pressure of `"1 atm"`, the molar volume is `"22.4 L"` at `"273 K" = 0^@ "C"` and `"24.5 L"` at `"298 K" = 25^@ "C"`.