7-8. 500 lb of N2 is there in a container7. How many pound moles of N2

1.	7-8. 500 lb of N2 is there in a container 7. How many pound moles of N2 does it contain?
A.	17.86
B.	35.7
C.	0.039
D.	0.078
Answer» B. 35.7

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