Answer : The volume of produced are 90.7 liters.
Explanation :
The balanced chemical reaction will be:
First we have to calculate the moles of PbS.
Molar mass of PbS = 239.26 g/mole
Now we have to calculate the moles of by using ideal gas equation.
Using ideal gas equation :
where,
P = Pressure of gas = 2.00 atm
V = Volume of gas = 123 L
n = number of moles = ?
R = Gas constant =
T = Temperature of gas =
Putting values in above equation, we get:
The number of moles of is, 6.07 mole
Now we have to calculate the limiting and excess reagent.
From the balanced reaction we conclude that
As, 3 mole of react with 2 mole of
So, 6.07 moles of react with moles of
From this we conclude that, is an excess reagent because the given moles are greater than the required moles and is a limiting reagent and it limits the formation of product.
Now we have to calculate the moles of
From the reaction, we conclude that
As, 3 mole of react to give 2 mole of
So, 6.07 moles of react to give moles of
Now we have to calculate the volume of produced at STP.
As, 1 mole of contains 22.4 L volume of
So, 4.05 mole of contains volume of
Therefore, the volume of produced are 90.7 liters.