# Chemistry

pyrite, FeS2 reactswhen it is heated strongly in the air according to the equation
4 FeS2(s) + 11 O2 rightarrow 2 Fe2O3(s) + 8 SO2(g)
What volume of sulfir dioxide ( measured at room temprature and pressure) would be produced by heating 100g of pyrite in excess of air
Molar volume ofgas at room temprature =24dm3

I don't understand how this is supposed to be sloved

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1. You slove it this way.
mols FeS2 = grams/molar mass = ?
Using the coefficients in the balanced equation, convert mols FeS2 to mols SO2.
Now convert mols SO2 to volume.
mols SO2 x 24 dm3/mol = ? dm3.

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