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How many grams of carbon dioxide can be produced from 2.0 g of ethene and 2.9 g of oxygen?
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Answer:
The reaction takes place is
2 (C2H6) + 7 (O2) → 4(CO2) + 6(H2O)
According to the equation,
60g ethane requires 7×32= 224g oxygen
here ethane is in excess.oxygen will be consumed completely.
hence
2.9 g O2 will consume 60×2.9/224=0.776g of C2H6
now,
2 moles of C2H6 produces 4 moles of CO2!
60g ethane produces 4×44 g CO2
hence amount of CO2 produced =4×44×0.776/60=2.27g