Carbon dioxide · CO2

Carbon dioxide: formula CO2, atom count, element breakdown and calculated molar mass.

CompoundCO₂

CO₂

Molar mass44.009 g/mol

Atoms3

Elements2

Carbon

1 × 12.011 · 27.29%

12.0110

Oxygen

2 × 15.999 · 72.71%

31.9980

The formula CO₂ contains 3 atoms in total. Numbers after element symbols show how many atoms of each element are present.

Molar mass is the sum of the contributions shown above. The percentages show how much each element contributes to the total mass.