A neutral gas that is made of nitrogen and hydrogen only contains 7 g – McqOptions

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1.	A neutral gas that is made of nitrogen and hydrogen only contains 7 g of nitrogen is in a mixture of with total mass 17 g, what is the mass fraction of the gas?
A.	0.5
B.	0.25
C.	0.45
D.	0.8
Answer» B. 0.25

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