Elemental S reacts with O2 to form SO3 according to the reaction:
2S + 3O2 → 2SO3
a. How many O2 molecules are needed to react with 5.69 g of S? Express your answer numerically in units of molecules.
b. What is the theoretical yield of SO3 produced by the quantities described in part a? Express your answer numerically in grams.
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