JAMB Chemistry 2013 Objective — Question 3
Question 3 of 50 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2013 Objective paper, with the correct answer and a full explanation.
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What volume of carbon(II) oxide is produced by reacting excess carbon with 10dm³ of oxygen?
- A. 15dm³
- B. 10dm³
- C. 5dm³
- D. 20dm³Correct
Explanation
2C(s) + O2(g) → 2CO(g). Since the mole ratio of oxygen to carbon(II) oxide (from the balanced equation) is 1:2, 10dm³ of oxygen will produce 20dm³ of carbon(II) oxide.
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