A mixture of H 2 and NH 3 has a volume of 139.0 cm 3 at 0.00C
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A mixture of H2 and NH3 has a volume of 139.0 cm3 at 0.00°C and 1 atm. The mixture is cooled to the temperature of liquid nitrogen, at which ammonia freezes out and the remaining gas is removed from the vessel. Upon warming the vessel to 0.00°C and 1 atm, the volume is 77.4 cm3. Calculate the mole fraction of NH3 in the original mixture.
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