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4FeS2 + 11O2 -> 2Fe2O3 + 8SO2, what is the extent of reaction if 512 grams of SO2 is produced?

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4FeS2 + 11O2 -> 2Fe2O3 + 8SO2, what is the extent of reaction if 512 grams of SO2 is produced?

(a) 1

(b) 2

(c) 3

(d) 4

I got this question during an online exam.

Origin of the question is Stoichiometry Applications Terminology topic in section The Chemical Reaction Equation & Stoichometry, Material Balances for Processes Involving Reaction and Multiple Units of Basic Chemical Engineering

1 Answer

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The correct option is (a) 1

The explanation: Moles of SO2 = 512/64 = 8, => Extent of reaction = (8 – 0)/8 = 1.

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