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Asked by Gray

"How many moles of oxygen are required to react completely with 5 mol C(8)H(18)?"

2C(8)H(18) + 25O(2) => 16CO(2) + 18 H(2)O

In the question, how do I know if "oxygen" means the molecule O(2) or the element O?
15 years ago

Answers

Answered by bobpursley
http://www.jiskha.com/display.cgi?id=1285089963 as an example.

Oxygen refers to the diatomic molecule, O2.
15 years ago
Answered by Gray
But if the question wanted me to find the moles of O, how would it be phrased? Thanks
15 years ago
Answered by bobpursley
It would ask, moles of the oxygen free atom, O.
15 years ago

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