10 moles of ethane is supplied with 49 moles of oxygen, what is the percentage of excess oxygen?

10 moles of ethane is supplied with 49 moles of oxygen, what is the pe

1.	10 moles of ethane is supplied with 49 moles of oxygen, what is the percentage of excess oxygen?
A.	20%
B.	40%
C.	50%
D.	70%
Answer» C. 50%

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10 moles of ethane is supplied with 49 moles of oxygen, what is the percentage of excess oxygen?

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