Calculate what mass of sulfur (IV) oxide can be obtained by reacting 3.2 g of sulfur with oxygen

Calculate what mass of sulfur (IV) oxide can be obtained by reacting 3.2 g of sulfur with oxygen, if the practical yield of the process is 75%.

The equation for the reaction of sulfur with oxygen:
S + O2 = SO2
The amount of sulfur substance:
v (S) = m (S) / M (S) = 3.2 / 32 = 0.1 (mol).
According to the reaction equation, from 1 mol of S 1 mol of SO2 is formed, therefore, taking into account the yield of the process:
v (SO2) = v (S) * 0.75 = 0.1 * 0.75 = 0.075 (mol).
The mass of sulfur oxide (IV) that can be obtained:
m (SO2) = v (SO2) * M (SO2) = 0.075 * 64 = 4.8 (g).