Asked by Petey

Sulfur dioxide (SO2) reacts with oxygen gas to make sulfur trioxide (SO3).
How many grams of oxygen are used to produce 8.11 grams of sulfur trioxide?

Answers

Answered by DrBob222
2SO2 + O2 ==> 2SO3

mols SO3 needed = grams/molar mass = ?
Using the coefficients in the balanced equation, convert mols SO3 to mols O2.

Now convert mols O2 to grams. g O2 = mols O2 x molar mass O2.
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