Combustion Analysis (CHN)Chemistry
Combustion Analysis Elemental Calculator (Carbon, Hydrogen & Oxygen)
Calculate percent mass composition of Carbon (%C), Hydrogen (%H), and Oxygen (%O) from produced CO2 and H2O masses to establish empirical formulas of organic compounds.
Calculated Result
Carbon Content (% C)
40.01
Calculator Inputs
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Quick select:
Carbon Content (% C)
40.01
Hydrogen Content (% H)
6.71 %
Oxygen Content (% O)
53.28 %
Precise Elemental Quantification: Delivers exact mass ratios to deduce moles and resolve empirical formulas.
Organic Elemental Composition Profile
Carbon %
40.01 %(40%)
Hydrogen %
6.71 %(7%)
Oxygen %
53.28 %(53%)
Standard analytical and synthetic organic chemistry tool for elemental combustion profiling.
Calculation Methodology
Mass C = Mass CO2 * (12.011 / 44.01). Mass H = Mass H2O * (2.016 / 18.015). Mass O = Sample Mass - (Mass C + Mass H). Element % = (Element Mass / Sample Mass) * 100%.
Frequently Asked Questions
Since excess atmospheric O2 is supplied to ensure complete combustion, original sample oxygen is calculated by difference: Sample Mass minus (Carbon Mass + Hydrogen Mass).
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