What volume will 96 g of sulfur oxide (4) take when? How many molecules of this gas are contained in this volume?

Find the amount of sulfur (IV) oxide substance by the formula:

n = m: M.

M (SO2) = 32 + 32 = 64 g / mol.

n = 96 g: 64 g / mol = 1.5 mol.

V = Vn n, where Vn is the molar volume of gas, equal to 22.4 l / mol, and n is the amount of substance.

V = 1.5 mol × 22.4 L / mol = 33.6 L.

N = nNA, where NA is Avogadro’s number equal to 6 × 10 ^ 23.

N = 1.5 × 6 × 10 ^ 23 = 9 × 10 ^ 23

Answer: 33.6 l; 9 × 10 ^ 23