Question

Solve problem:

Calculate the mass of sulfur dioxide produced by burning 16 g of sulfur in excess of oxygen in the contact process. (Average atomic mass : S = 32 u, O = 16 u)

Answer 1

Given: Mass of sulfur (reactant) = 16 g

To find: Mass of sulfur dioxide (product)

Calculation: 32 g of sulfur combine with 32 g oxygen to form 64 g of sulfur dioxide as follows:

\[\ce{\underset{\text{32 g}}{sulfur} + \underset{\text{32 g}}{Oxygen}->\underset{\text{64 g}}{sulfur dioxide}}\]

Hence, (0.5 × 32 = 16 g) of sulfur will combine with (0.5 × 32 = 16 g) of oxygen to give (0.5 × 64 = 32 g) sulfur dioxide.

Mass of sulfur dioxide produced = 32 g