ashut221 ashut221 06-08-2024 Chemistry Answered I want to convert CO2 gas unit ppm to umol/m3 at STP The way I think is as follows. umole/m3 = CO2 (umol/mol)/(mol_voulme (L/mol) * (m3/1000L)) Is this the right way? If that's right, please solve 450 ppm (umol/mol) as an example