Combustion analysis

Definition

Combustion analysis is a method used to determine the elemental composition, especially carbon and hydrogen, of an organic compound by burning the sample and analyzing the resulting products. This technique is essential for quantitative chemical analysis.

5 Must Know Facts For Your Next Test

1. The primary goal of combustion analysis is to determine the amounts of carbon and hydrogen in a compound.
2. Oxygen in the compound can be determined by subtracting the masses of carbon and hydrogen from the total mass.
3. The products of combustion typically include CO2 and H2O, which are quantified to find the original amounts of C and H in the sample.
4. Combustion analysis requires precise measurements of mass before and after combustion to ensure accurate results.
5. This method is often used in combination with other techniques to determine empirical formulas.

Review Questions

• What are the main products analyzed in combustion analysis?
• How can oxygen content be determined in a compound using combustion analysis?
• Why is it important to measure mass accurately before and after combustion?

Related terms

Empirical Formula: The simplest whole-number ratio of elements in a compound.

Stoichiometry: The calculation of reactants and products in chemical reactions based on balanced equations.

Quantitative Analysis: The determination of the amount or concentration of a substance in a sample.