1.natural gas is composed mostly of methane ,but it can contain significant amou
ID: 791739 • Letter: 1
Question
1.natural gas is composed mostly of methane ,but it can contain significant amounts (up to 20 %)of ethane ,C2H6;propane,C3H8; butane, C4H10; and carbon dioxide ,CO2.would the presence of these copmonents make the apparent molar mass of natural gas greater or less than that of pure methane CH4?
2.if some air remained in your syringe along with the natural gas sample, would that make your result greater or less than the actual molar mass of natural gas? is the same true for your sample of unknown gas ?
Explanation / Answer
It would make the apparent molar masses of natural gas higher than that of pure methane.
If some air remailned in the syringe, natural gas will react with it to form carbon dioxide and water.
This would not increase thee apparent molar masses because
it wont occur at lower temperatures
But at higher temperatures, the products would be gases, and the apparent molar mass increases.
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