4 FeS(s) + 7 O2(g) 2 Fe2S3(s) + 4 SO2(g)
a. Starting with 44.0 g of iron(II) sulfide, how many moles of sulfur dioxide can be formed?
b. How many liters of sulfur dioxide, measured at 75.4 °C and 2.00 atm, will be produced from the same amount of iron(II) sulfide?

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