Calculate the volume of the thing if its mass is 3.2 g of the substance SO2.

SO2 is a colorless gas. To calculate its volume, you need to know the number of moles of gas. We find the number of moles by dividing the mass of sulfur dioxide by its molar mass.

M (SO2) = 32 + 16 * 2 = 64 g / mol

n (SO2) = m / M = 3.2 / 64 = 0.05 mol

The volume of any gas can be found by multiplying the amount of the substance by the molar volume Vm.

Vm under normal conditions (0 ° C, 1 atmosphere) is 22.4 liters.

V (SO2) = n * Vm = 0.05 * 22.4 = 1.12 liters.

If the temperature or pressure differs from normal conditions, then the molar volume changes and must be recalculated using the Clapeyron-Mendeleev equation.

pV = nRT