Question

24 g of carbon completely burn in presence of 64g of oxygen what mass of oxygen required for the complete combustion of 4.8 g of carbon also find mass of carbon dioxide​

Answer 1

Answer:

Balanced Eqn

2C2H6+7O2=4CO2+6H2O

By the Balanced eqn

60g ethane requires 7x32= 224g oxygen

here ethane is in excess.oxygen will be fully consumed

hence

300g oxygen will consume 60⋅300224=80.36g ethane

leaving (270-80.36)= 189.64 g ethane.

By the Balanced eqn

60g ethane produces 4x44 g CO2

hence amount of CO2 produced =4⋅44⋅80.3660=235.72g

and its no. of moles will be 235.7244 =5.36 where 44 is the molar mass of Carbon dioxide

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