Answer to Question #193979 in General Chemistry for Madelleine Flores

Question #193979

Hydrogen sulfide gas is combusted with oxygen gas to produce sulfur dioxide gas and water vapour. If there is 48.4 L of oxygen available, what volume of hydrogen sulfide gas may be combusted if the pressure is held constant at 105 kPa and the temperature is held constant at 190°C?


1
Expert's answer
2021-05-18T07:52:48-0400

2H2S + 3O2 → 2SO2 + 2H2O

V(O2) = 48.4 L

p = 105 kPa = 1.036 atm

T = 190 + 273 = 463 K

Ideal gas law:

pV = nRT

R = 0.08206 L×atm/mol×K

n(O2)

According to the reaction:

n(H2S) = n(O2) =

Answer: 32.26 L


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