In combustion analysis, you must calculate the oxygen content of the sample by adding the amount...
In combustion analysis, you must calculate the oxygen content of the sample by adding the amount of oxygen collected in the CO2 absorber and the H2O absorber? Please explain in detail why this statement is false?
Homework Answers
Solution:
In the combustion process, the sample burns in the presence of excess amount of oxygen gas to form CO2 and H2O. Thus, the content of the sample can not determine only by adding the amount of oxygens collected in CO2 and H2O products.
For example, the combustion of a sample CxHyOz in presence of oxygen gas can be written as,
CxHyOz + n O2 = x CO2 + (y/2) H2O
Thus, oxygen collected in H2O and CO2 can not equal to the oxygen content present in sample but it can be equal to the sum of oxygen of sample and oxygen gas required for combustion process.
Therefore, the given statement is false.
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