How many moles of helium gas are contained in a 4.0-L flask at STP?
2 answers:
Answer:
0.1784 moles of helium gas are contained in a 4.0-L flask at STP.
Explanation:
At STP. temperature of the helium gas = T = 273.15 K
At STP, pressure of the helium gas = P = 1 atm
Volume of the helium gas at STP = V = 4.0 L
Moles of the helium gas = n
Using an ideal gas equation :
n = 0.1784 mol
0.1784 moles of helium gas are contained in a 4.0-L flask at STP.
You might be interested in
Answer : The equilibrium will shift in the left direction.
Explanation :
Le-Chatelier's principle : This principle states that if any change in the variables of the reaction, the equilibrium will shift in the direction to minimize the effect.
The given reaction is:
As per question, when we are adding then the concentration of
is increased on product side then the equilibrium will shift in the direction where decrease of concentration of
takes place. Therefore, the equilibrium will shift in the left direction.
Thus, the equilibrium will shift in the left direction.