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#1




H2S % to ppm conversion
For oil / gas industry it is stated as 1 % H2S (Hydrogen Sulfide) = 10000 ppm H2S. Can u tell me the calculation for this?

#2




Re: H2S % to ppm conversion
Quote:
one million divided by one hundred isten thousand. Both the numerator and denominator of one part per hundred are multiplied by ten thousand yielding 10000 parts per million. (or move the decimal four places ) 
#3




Re: H2S % to ppm conversion
H2s from mg/nm3 to ppm ,0.1

#4




Re: H2S % to ppm conversion
Is there a difference between mole percent H2s and Percent H2s in a gas stream? If I have 9.36 mole percent H2s, what is the percent H2S in gas stream and also PPM in gas stream. Would that be 9360 PPM? Thanks

#5




Re: H2S % to ppm conversion
Quote:
So it is 9.36%; however 1% = 10000 ppm (1% of one million parts), so 93600 ppm. 
#6




Re: H2S ppmv to mol% conversion
Mole weight of gas mixture 17.57 g/mol
H2S 20ppm in volume How much mol % of H2S in the mixture? Thanks! 
#7




Re: H2S ppmv to mol% conversion
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20 ppm or 0.002%. By Dalton's Law of Partial Pressures the fraction by molar ratio, partial pressure, or volume would be the same. 
#8




Re: H2S ppmv to mol% conversion
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How about below calculations:  Gas Mixture: 17.57 g/mol H2S: 34.08 g/mol; 20ppm in volume (2E5) Per mole Gas mixture = 17.57g H2S = 2E5 x 34.08 g = 6.8E4 g Mol % = 6.8E4 / 17.57 *100% = 3.87E3 % = 0.00387% 
#9




Re: H2S ppmv to mol% conversion
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What is the answer then? THX 
#10




Re: H2S ppmv to mol% conversion
Since both the mixture and the H2S occupy the entire volume, what does percent (or ppm) by volume actually mean? It customarily is considered to be the ratio of the number of molecular entities hence it is the molar ratio.

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