Animallover100
04.06.2021 •
Chemistry
Propane burns to form carbon dioxide and water. The equation for the reaction is:
C 3 H 8 (g)+5 O 2 (g) 3 CO 2 (g)+4 H 2 O(l)
3.60d * m ^ 3 carbon dioxide is produced when a sample of propane is burned in 7.25d * m ^ 3 oxygen.
Calculate the volume of unreacted oxygen. Give your answer in cm^ 3
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Ответ:
Propane burns to form carbon dioxide and water. The equation for the reaction is:
C3H8 (g)+5O2 (g) -> 3CO2 (g) + 4H2O(l)
Explanation:
From the balanced chemical equation, it is clear that:
1mol. of propane reacts with 5 mol. of O2 and forms 3 mol. of CO2.
In terms of volume, the above equation can be rewritten as:
1.0L. of propane reacts with 5.0L O2 and forms 3.0L of CO2.
Since,
3.60dm^3 of CO2 is formed from how many dm^3 of O2?
The volume of unreacted oxygen is:
The volume of unreacted oxygen is 1.25L or 1250cm^3.
Since,
1dm^3=1000cm^3.
Ответ: