what is the mole fraction of oxygen in the tank?
Posted on June 8th, 2010 by admin
A 5L diving tank is filled to a pressure of 34 atm with He and then is topped off with O2 to a total pressure of 40 atm. what is the mole fraction of oxygen in the tank?
the answer is .15
how do you find this answer?
Partial pressure of oxygen is 40-34=6.
Mole fraction of oxygen = partial pressure of oxygen/total pressure:
Mole fraction of oxygen = 6/40 = 0.15
June 8th, 2010 at 6:28 pm
Partial pressure of oxygen is 40-34=6.
Mole fraction of oxygen = partial pressure of oxygen/total pressure:
Mole fraction of oxygen = 6/40 = 0.15
References :
June 8th, 2010 at 7:03 pm
The mole fraction is just the pressure of oxygen over the total pressure.
XA = PA / PT (P is pressure, X is mole fraction, T is total, A is whatever you’re finding the mole fraction of)
XA = 6 / 40
XA = .15
References :