Combustion analysis

In which CO2 is absorbed during the combustion analysis of an organic compound?

In combustion analysis of an organic compound, CO2 is absorbed in 50% KOH. It gives 2KOH + CO2 → K2CO3 + H2O

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For what determination combustion analysis is performed?

Combustion analysis is performed for the determination of empirical of a compound, containing C, H2 and O2.

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Which one of the following elements is analysed by the method of difference during combustion analysis?

In combustion analysis, carbon and hydrogen are converted into CO2 and H2O which are estimated by calculations. Anyhow, O2 is estimated by the method of difference. The %age of C and H2 are subtracted from 100 to get % of O.

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