Elemental s reacts with o2 to form so3 according to the reaction
2s+3o2→2so3
what is the theoretical yield of so3 produced by 8.79 g of s?
express your answer numerically in grams.

Explanation:

Given the reaction equation

2S+3O2→2SO3

2 moles of S will produce 2 moles of SO3

Molecular mass of S is 32g, so 8.79 g of S = 8.79/32 = 0.2747 moles

It will yield 0.2747 moles of SO3

Molecular mass of SO3 is 32+16*3 = 80g

0.2747 moles of SO3 = 0.2747*80 = 22g

The theoretical yield of SO3 is 22 grams.

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