Question

Hydrogen sulfide gas reacts with oxygen gas to form sulfur dioxide and water. What volume of oxygen is needed to completely react with 2.8 Liters hydrogen sulfide?

Answer 1

4.2 L O₂ is needed to completely react with 2.8 L hydrogen sulfied.

Step-by-step explanation:

Without pressure and temperature we cannot calculate the this vale

We assume that the reaction take place under standard Temperature and Pressure(STP).

At STP, One mole (
`6.023* 10^(23)` particles) of any gas occupied volume 22.4 L.

The balanced equation of this reaction is

`2H_2S+3O_2\rightarrow 2SO_2+2H_2O`

Now we use molar ratio.

`2.8L\ H_2S . \ (1 mol\ H_2S)/(22.4L \ H_2S)\ . \ (3 mol\ O_2)/(2 mol \ H_2S) \ . \ (22.4L\ O_2)/(1 mol\ O_2)`

=4.2 L O₂

4.2 L O₂ is needed to completely react with 2.8 L hydrogen sulfied.