Homework Answers
All 3 flasks have
Volume V = 1.00L
Pressure P = 750Torr
TemperatureT = 25C = 298K
As all the three parameters P,V and T are identical according to Avogadro'x law , all three flasks should have same number of moles irrespective of the gas.
Thus all have SAME NUMBER OF MOLES.
Now let us see if the moles = 0.039
Using ideal gas equation
PV = nRT
thus
n = PV/RT
= (725/760) atm x 1.00L / 0.0821L.atm/K.mol x 298
=0.03899 mol
=0.039 mol
thus all flaks have 0.039moles of gas.
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