A mixture of hydrogen gas and oxygen gas exerts a total pressure of 10 atm on the walls of its container. If the partial pressure of hydrogen is 1 atm, find the mole fraction of oxygen in the mixture.
Given, Phydrogen = 1 atm, Ptotal = 10 atm
Applying Dalton’s law formula, Ptotal=Phydrogen+Poxygen
Therefore, Poxygen = 9 atm
Now, the mole fraction of oxygen, Xoxygen=PoxygenPtotal=910=0.9
Therefore, the mole fraction of oxygen in the mixture is 0.9.