In a container, there are 4 moles of nitrogen, 3 moles of oxygen and 7 – McqOptions

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1.	In a container, there are 4 moles of nitrogen, 3 moles of oxygen and 7 moles of hydrogen; find out the mole fraction of oxygen in this reaction.
A.	0.2143
B.	0.2142
C.	0.1234
D.	0.2434
Answer» B. 0.2142

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