Question

How many liters of O2 are needed to react completely with 45L of H2S at STP?

2H2S(g) + 3O2(g) --> 2SO2(g) + 2H2O(g)
What's the ratio (from the balanced equation) of O2 to H2S? It looks like
(3 mols O2/2 mols H2S) so that ratio times 45 L? Check my thinking.
22.4

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