The densities of crystalline co2 and nh3 at 160 k are 1.56 and 0.84 g/cm3, respectively. calculate their molar volumes.

Question

Chemistry

Zander Sampson

16 November, 12:18

The densities of crystalline co2 and nh3 at 160 k are 1.56 and 0.84 g/cm3, respectively. calculate their molar volumes.

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Irene · Answer 1

The molar volume, symbol Vm, is the volume occupied by one mole of a substance at a given temperature and pressure. It is equal to the molar mass divided by the mass density. Therefore, we calculate as follows:

Vm (CO2) = 44.01 / 1.56 = 28.21 cm^3 / mol

Vm (NH3) = 17.03 / 0.84 = 20.27 cm^3 / mol