Chemistry
JAMB 2000
50 cm
3 of carbon (II) oxide was exploded with 150 cm
3 of air containing 20% oxygen by volume. Which of the reactants was in excess?
-
A.
Carbon (II) oxide
-
B.
Carbon (IV) oxide
-
C.
Oxygen
-
D.
Nitrogen
Correct Answer: Option C
Explanation
2CO + O2 → 2CO2
50cm3 → 25cm3
20% * 150 = 30cm3
30 cm3 is the volume of oxygen available for the reactions. But only 25 cm3 is required; therefore O2 is in excess
Report an Error
Ask A Question
Download App
Quick Questions
Contributions ({{ comment_count }})
Please wait...
Modal title
Report
Block User
{{ feedback_modal_data.title }}