Question 1
Sulfuric acid may be produced by the following process:
4FeS2 + 11O2→ 2Fe2O3 +8SO2
2SO2 +O2→ 2SO3
SO3 + H2O → H2SO4
How many moles of H2SO4 will be produced from 6.84 moles of FeS2?
◦
37.6◦
6.84◦
13.7◦
3.42◦
1.71Question 2
Suppose the reaction Ca3(PO4)2 + 3H2SO4→ 3CaSO4 + 2H3PO4 is carried out starting with 155 g of Ca3(PO4)2
and 81.3 g of H2SO4. How much phosphoric acid will be produced?
◦
81.2 g◦
54.1 g◦
236.3 g◦
121.8 g◦
97.9 g