How Do You Calculate Moles in Biogas Composition?

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SUMMARY

This discussion focuses on calculating moles in biogas composition, specifically involving a mixture of 60% methane and 40% carbon dioxide by weight. For 10 kg of biogas, the calculations reveal that there are 6 kg of methane and 4 kg of carbon dioxide. This translates to 0.375 moles of methane and 0.0909 moles of carbon dioxide, based on their respective relative molecular masses of 16 and 44. Additionally, the total moles of biogas in 10 kg is calculated to be approximately 0.4545 moles.

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  • Understanding of relative molecular mass
  • Basic knowledge of mole calculations
  • Familiarity with gas laws and properties
  • Ability to perform weight-to-mole conversions
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  • Learn about mole fraction calculations in gas mixtures
  • Study the Ideal Gas Law and its applications
  • Explore the concept of molar volume at standard temperature and pressure (STP)
  • Investigate the properties of biogas and its components
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Chemistry students, environmental scientists, and professionals involved in biogas production and analysis will benefit from this discussion.

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hi folks.. I am having some problem here, and i dun know how to solve it.. some mole calculation. i would like ask help from u guys.. many thanks.. questions are below: [can give me the working process in details?]

6. A report states that biogas is 60% methane (relative molecular mass = 16) and 40% carbon dioxide (relative molecular mass = 44) by weight. Consider 10 kg of biogas.
(a) How much methane, by weight, would you expect in 10 kg of biogas?

(b) How many moles of methane would be there in this biogas amount?

(c) How many moles of carbon dioxide would be there in this biogas amount?

(d) How many moles of biogas would there be in 10 kg of biogas?

(e) What is the pV content of 10 kg of biogas at 300 K?
 
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You're going to have to show us your attempts first (even if they don't get the right answer) so we can determine where you are getting stuck to help. We won't do your homework for you.

If you're completely stuck and don't even know where to start, tell us what relative molecular mass is (understanding this is key to most of the questions you were asked).
 

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