Question

How many moles of ethane are required to prepare 8.8 kg of carbon-dioxide in combustion of ethane?

Answer 1

Ethane on combustion gives CO2 and H2O as follows.

C2H6 +7/2O2———->2CO2+3H2O

2 moles of CO2 is produced from=1 mole ethane

1 mole of CO2 is produced from =0.5 mole ethane

So 44 gm CO2 is produced from

=0.5 x 30=15 gm Ethane.

0.5 mole or 15 gm Ethane is required to produce 44 gm.of CO2

Answer 2

Answer:  

Ethane on combustion gives CO2 and H2O as follows.

C2H6 +7/2O2———->2CO2+3H2O

2 moles of CO2 is produced from=1 mole ethane

1 mole of CO2 is produced from =0.5 mole ethane

So 44 gm CO2 is produced from

=0.5 x 30=15 gm Ethane.

0.5 mole or 15 gm Ethane is required to produce 44 gm.of CO2

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Explanation: