How many moles of molecular oxygen will be needed for the complete combustion of 100.0 g of sulfur dioxide? The product of this reaction is sulfur trioxide

Question

Evangeline Delacruz

Chemistry

19 March, 13:16

How many moles of molecular oxygen will be needed for the complete combustion of 100.0 g of sulfur dioxide? The product of this reaction is sulfur trioxide

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Answers (1)

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Clinton Bender · Answer 1

0.78 mol O2

Explanation:

2SO2 + O2 - > 2 SO3

64 g SO2 - > 1 mol SO2

100 g SO2 - > x

x = (100 g SO2 * 1 mol SO2) / 64 g SO2 x=1.56 mol SO2

1 mol O2 - > 2 mol SO2

x - > 1.56 mol SO2

x = (1.56 mol SO2 * 1 mol O2) / 2 mol SO2 x=0.78 mol O2