Originally Posted by Margarida Correia
Please i need to convert 1ppm of Hydrogen Sulfide to mol %
What kind of ppm? Ppm can be specified as a ratio by mass, volume or mole fraction. If by mole fraction. 1 ppm is 0.0001%. If not by molae fraction, by what basis, and what is the other constituent?
If it is hydrogen sulphide mixed in another gass, the ppm is most likely expressed as a mole fraction.