JAMB UTME - Chemistry - 2013 | Green Bridge CBT

Question 1 Report

What volume of carbon (ll) oxide is produced by reacting excess carbon with 10 dm3 of oxygen?

5 dm 3

20 dm 3

15 dm 3

10 dm 3

Answer Details

The volume of carbon dioxide produced by reacting excess carbon with 10 dm^3 of oxygen can be calculated using the balanced chemical equation for the reaction. The balanced chemical equation for the reaction between carbon and oxygen to form carbon dioxide is: C + O2 → CO2 From this equation, it can be seen that one molecule of carbon reacts with one molecule of oxygen to form one molecule of carbon dioxide. So, if we have 10 dm^3 of oxygen, we would need 10 dm^3 of carbon to react with it. The volume of carbon dioxide produced would be equal to the volume of the reactants, which in this case is 10 dm^3 + 10 dm^3 = 20 dm^3. Therefore, the answer is 20 dm^3 of carbon dioxide would be produced.

Read lesson note on Stoichiometry And Chemical Reactions (WAEC)






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