3 Answers

2(C2H6)+9O2 gives 4(CO2) +6(water)
therefore 2 moles of ethane gives 4 moles of CO2 then for 5.45 moles of ethane we have
=(4)(5.45)/2=10.9
therefore 10.9 moles of CO2 is evolved

C2H6 + 32 O2 >2 CO2 + 3H2O
1 mole of ethane forms= 2 moles of CO2
5.45 moles will give = 10.9 moles.

ethane is made of 2 carbons: C2H6
since each carbon would break off into carbon dioxide, you would end up with twice as many moles of CO2 as you had ethane: 10.9