Question 8Methane (𝐶𝐻4CH 4 ) burns in the presence of Oxygen (𝑂2O 2 ) to make Carbon Dioxide (𝐶𝑂2CO 2 ) and Water (𝐻2𝑂H 2 O) according to the following chemical equation:𝐶𝐻4+2𝑂2→𝐶𝑂2+2𝐻2𝑂CH 4 +2O 2 →CO 2 +2H 2 OHow many molecules of Oxygen are consumed if 24 molecules of Carbon Dioxide are produced?
Question
Question 8Methane (𝐶𝐻4CH 4 ) burns in the presence of Oxygen (𝑂2O 2 ) to make Carbon Dioxide (𝐶𝑂2CO 2 ) and Water (𝐻2𝑂H 2 O) according to the following chemical equation:𝐶𝐻4+2𝑂2→𝐶𝑂2+2𝐻2𝑂CH 4 +2O 2 →CO 2 +2H 2 OHow many molecules of Oxygen are consumed if 24 molecules of Carbon Dioxide are produced?
Solution
According to the balanced chemical equation, one molecule of Methane (CH4) reacts with two molecules of Oxygen (O2) to produce one molecule of Carbon Dioxide (CO2) and two molecules of Water (H2O).
So, the ratio of Oxygen to Carbon Dioxide is 2:1.
If 24 molecules of Carbon Dioxide are produced, then the number of Oxygen molecules consumed would be 2 times the number of Carbon Dioxide molecules.
Therefore, 24 molecules of Carbon Dioxide * 2 = 48 molecules of Oxygen are consumed.
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