Ammonium bisulfide, NH4HS , forms ammonia, NH3 , and hydrogen sulfide, H2S , through the reaction NH4HS(s)âNH3(g)+H2S(g) This reaction has a Kp value of 0.120 at 25 âC .
An empty 5.00-L flask is charged with 0.300 g of pure H2S(g) , at 25 âC .
--------------------------------------------------------------------------------------------
PART A
What are the partial pressures of NH3 and H2S at equilibrium, that is, what are the values of PNH3 and PH2S , respectively?
Enter the partial pressure of ammonia followed by the partial pressure of hydrogen sulfide numerically in atmospheres separated by a comma.
PNH3 , PH2S = _____ atm
------------------------------------------------------------------------------------------
PART B
What is the mole fraction, Ï , of H2S in the gas mixture at equilibrium?
Express your answer numerically.
ÏH2S = ?
-------------------------------------------------------------------------------------------
PART C
What is the minimum mass of NH4HS that must be added to the 5.00-L flask when charged with the 0.300 g of pure H2S(g) , at 25 âC to achieve equilibrium?
mass> _________ g ??
Ammonium bisulfide, NH4HS , forms ammonia, NH3 , and hydrogen sulfide, H2S , through the reaction NH4HS(s)âNH3(g)+H2S(g) This reaction has a Kp value of 0.120 at 25 âC .
An empty 5.00-L flask is charged with 0.300 g of pure H2S(g) , at 25 âC .
--------------------------------------------------------------------------------------------
PART A
What are the partial pressures of NH3 and H2S at equilibrium, that is, what are the values of PNH3 and PH2S , respectively?
Enter the partial pressure of ammonia followed by the partial pressure of hydrogen sulfide numerically in atmospheres separated by a comma.
PNH3 , PH2S = _____ atm |
------------------------------------------------------------------------------------------
PART B
What is the mole fraction, Ï , of H2S in the gas mixture at equilibrium?
Express your answer numerically.
ÏH2S = ?
-------------------------------------------------------------------------------------------
PART C
What is the minimum mass of NH4HS that must be added to the 5.00-L flask when charged with the 0.300 g of pure H2S(g) , at 25 âC to achieve equilibrium?
mass> | _________ g ?? |