How many liters of O2 are needed to react completely with 45.0 L of H2S at STP? (2 points) 2H2S (g) + 3O2 (g) 2SO2 (g) + 2H2O (g

Question

elena-s [515]

2 years ago

6

How many liters of O2 are needed to react completely with 45.0 L of H2S at STP? (2 points) 2H2S (g) + 3O2 (g) 2SO2 (g) + 2H2O (g

)

Chemistry

1 answer:

Marizza181 [45] · Answer 1 · 2022-07-11T13:12:12+03:00

The balanced chemical reaction is given as:

<span>2H2S (g) + 3O2 (g) 2SO2 (g) + 2H2O (g)

We are given the volume at STP of H2S to be used for the reaction. This would be the starting point for the calculations. We do as follows:

45.0 L H2S ( 1 mol / 22.4 L) ( 3 mol O2 / 2 mol H2S ) ( 22.4 L / 1 mol ) = 67.5 L O2 needed </span>