If I have 30 glucose molecules, how many CO2 molecules will that produce?
Here is a worked example of a stoichiometry problem.
http://www.jiskha.com/science/chemistry/stoichiometry.html
The equation for the complete combustion of methane is CH4(g) + 2O2(g) → CO2(g) + 2H2O(g). If 4.00 g of CH4(g) react completely, how much water is expected?
To determine the number of CO2 molecules produced from the combustion of glucose, we need to understand the chemical equation for the process. The combustion of glucose can be represented by the following balanced chemical equation:
C6H12O6 + 6O2 → 6CO2 + 6H2O
According to this equation, for every molecule of glucose (C6H12O6) that undergoes combustion, it reacts with 6 molecules of oxygen (O2) to produce 6 molecules of carbon dioxide (CO2) and 6 molecules of water (H2O).
Since you have 30 glucose molecules, we need to multiply this number by the stoichiometric coefficient for CO2, which is 6, to determine the number of CO2 molecules produced.
30 glucose molecules * 6 CO2 molecules/glucose molecule = 180 CO2 molecules
Therefore, the combustion of 30 glucose molecules would produce 180 CO2 molecules.