Answer fast
if iron pyrite, fes2, is not removed from coal, oxygen from the air will combine with both the iron and the sulfur as coal burns. if a furnace burns an amount of coal containing 198.20 g of fes2, how much so2 (an air pollutant) is produced?
4 fes2 + 11 o2 → 2 fe2o3 + 8 so2
select one:
a. 211.7
b. 52.92
c. 590.8
d. 582.1

First we need to calculate the number of moles of FeS:

number of moles = mass (grams) / molecular mass (g/mol)

number of moles of FeS = 198.2/120 = 1.65 moles

From the chemical reaction we deduce that:

if            4 moles of FeS produces 8 moles of SO

then  1.65 moles of FeS produces X moles of SO

X = (1.65×8)/4 = 3.3 moles of SO

Now we can calculate the mass of SO:

mass (grams) = number of moles × molecular mass (grams/mole)

mass of SO = 3.3×64 = 211.2 g

8 m/s because for him to get the same amount of energy as ray is putting out, bobby, who weighs half as much as ray, needs to run twice as fast.

yes

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