Coal is a fossil fuel made primarily of carbon, but it also contains sulfur amon
ID: 1007538 • Letter: C
Question
Coal is a fossil fuel made primarily of carbon, but it also contains sulfur among other elements. When carbon, C, burns in air, it reacts with oxygen, O2, to produce carbon dioxide,CO2: C(s)+O2(g)CO2(g) When sulfur, S, burns in air, it reacts with oxygen, O2, to produce sulfur dioxide, SO2: S(s)+O2(g)SO2(g) In 1986 an electrical power plant in Taylorsville, Georgia, burned 8,376,726 tons of coal, a national record at that time.
Part B
Assuming that the coal was 1.90 % sulfur by mass and that combustion was complete, calculate the number of tons of sulfur dioxide produced by the plant during the year.
Express your answer numerically in tons.
Part C
If 72.0 % of the SO2 could be removed by reaction with powdered calcium oxide, CaO , via the reaction
SO2(g)+CaO(s)CaSO3(s)
how many tons of calcium sulfite, CaSO3 , would be produced?
Part A Assuming that the coal was 83.6 % carbon by mass and that combustion was complete, calculate the number of tons of carbon dioxide produced by the plant during the year. Express your answer numerically in tons. PLEASE FIGURE OUT ONLY PART C!!! THE ANSWER IS NOT
3709214.1
3709214.1
Explanation / Answer
C(s)+O2(g)CO2(g)
mass of coal burned = 8376726 tons
mass of C burned = 8376726*83.6/100 = 7002942.93 tons
No of ton molar c burned = 7002942.93/12 = 583578.5775 tonmol
No of ton molar CO2 PRODUCED = 583578.5775 tonmol
mass of CO2 PRODUCED = 583578.5775*44 = 25677457.41 tons
part B
S(s)+O2(g)SO2(g)
No of tons S present in coal = 8376726*1.9/100 = 159157.794 tons
No of ton molar s = 159157.794/32 = 4973.68 ton mol
No of ton molar SO2 PRODUCED = 4973.68 ton mol
Mass of SO2 produced = 4973.68*64 = 318315.52 ton
part c
SO2(g)+CaO(s)CaSO3(s)
No of ton molar SO2 PRODUCED = 4973.68 ton mol
No of ton molar so2 removed = 4973.68*72/100 = 3581.05 ton mol
No of ton molar CaSO3 produced = 3581.05 ton mol
mass of CaSO3 produced = 3581.05*120.1412= 430231.64 tons