Strontium sulfide (SrS) is produced by reacting crushed celestine ore with coal according to the following reaction: SrSO4 + C SrS + CO2

The celestine ore contains 83.19 wt% of strontium sulfate (SrSO4), the balance being unreactive impurities. The bituminous coal used contains 67 wt% of carbon, the rest being unreactive impurities. 41380 kg of celestine ore and 8955 kg of coal are used to produce crude strontium sulfide.

1.Draw and fully label a block diagram of the process.

2.Assuming irreversible and complete reduction reaction, identify the excess reactant and percentage excess.

3.Determine the amount of crude product (in kg) and its composition (wt%).