A_BINARY_MIXTURE_OF_OXYGEN_AND_NITROGEN_WITH_PARTIAL_PRESSURES_IN_THE_RATIO_0.21_AND_0.79_IS_CONTAINED_IN_A_VESSEL_AT_300_K._IF_THE_TOTAL_PRESSURE_OF_THE_MIXTURE_IS_1_*_10_5_N/M2,_FIND_MASS_FRACTION_OF_OXYGEN?$

A_BINARY_MIXTURE_OF_OXYGEN_AND_NITROGEN_WITH_PARTIAL_PRESSURES_IN_THE_

1.	A_BINARY_MIXTURE_OF_OXYGEN_AND_NITROGEN_WITH_PARTIAL_PRESSURES_IN_THE_RATIO_0.21_AND_0.79_IS_CONTAINED_IN_A_VESSEL_AT_300_K._IF_THE_TOTAL_PRESSURE_OF_THE_MIXTURE_IS_1_*_10_⁵_N/M²,_FIND_MASS_FRACTION_OF_OXYGEN?$
A.	0.133
B.	0.233
C.	0.333
D.	0.433
Answer» C. 0.333

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A_BINARY_MIXTURE_OF_OXYGEN_AND_NITROGEN_WITH_PARTIAL_PRESSURES_IN_THE_RATIO_0.21_AND_0.79_IS_CONTAINED_IN_A_VESSEL_AT_300_K._IF_THE_TOTAL_PRESSURE_OF_THE_MIXTURE_IS_1_*_10_⁵_N/M²,_FIND_MASS_FRACTION_OF_OXYGEN?$