Combustion Analysis Calculator

Find C and H masses from CO₂ and H₂O produced.

Mass of carbon (mg) 12.009

Mass of hydrogen (mg) 2.014

Formula: C = CO₂ × 12.011/44.01 ; H = H₂O × 2.016/18.015

Step-by-step with your numbers:

1. Values used:

2. CO₂ produced = 44 mg

3. H₂O produced = 18 mg

5. Mass of carbon = 12.009mg

6. Mass of hydrogen = 2.014mg

Did we solve your problem today?

Work out the carbon and hydrogen in a sample from its combustion products.

The math behind it

mass C = CO₂ × (12.011 ÷ 44.01); mass H = H₂O × (2.016 ÷ 18.015).

44 mg CO₂, 18 mg H₂O → 12 mg C, 2 mg H.

Oxygen?

Find it by subtracting C and H mass from the total sample mass.