How do I calculate CO2 output from a compressed air tank with 5% CO2?

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To calculate the CO2 output from a compressed air tank with 5% CO2, first determine the total volume of gas, which is 100 liters in this case. The flow rate is 0.01 LPM, meaning 5% of this flow rate is CO2, resulting in a CO2 output of 0.0005 LPM. The number of moles of CO2 can be calculated using the ideal gas law, considering the molecular weight of CO2 (44 g/mol) compared to air (29 g/mol). As the tank depletes, the concentration of CO2 will increase above 5% due to the heavier nature of CO2 and other contaminants. This change should be accounted for in long-term calculations of CO2 output.
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If I have a tank of compressed air with 5% CO2 and 95% air, and I know the flow rate coming out of the tank is 0.01 LPM, how do I determine the number of [moles/L] of CO2 coming out of the tank?
 
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Imagine that in the tank you have 95 liters of air and 5 liters of CO2. Compute the number of moles of CO2. This will be the number of moles of CO2 in 100 liters. The rest you can do yourself.
 
Naturally you will have 5% of 0.01LPM CO2 coming out of the tank. There's a slight change over time because CO2 molecule is 44 which is heavier than air (29). When the tank goes to the end, the concentration of CO2 is higher than 5%, so are other heavier contaminant gases.
 
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