Question

how many moles of ethane is tequired to produce 44g of co2 after compustion

Answer 1

m ѕσlvíng вч mσlє mєthσd
2C₂H₆ + 7O₂ ----------→ 4CO₂ + 6H₂O

frσm thíѕ rєαctíσn,

∵ 4 mσlєѕ σf cαrвσn díσхídє íѕ prєpαrєd вч 2 mσlє σf thє єthαnє.

mσlєѕ σf єthαnє/2 = mσlєѕ σf σхчgєn/7 = mσlєѕ σf cαrвσn díσхídє / 4 mσlєѕ σf wαtєr/6

mσlєѕ σf c2h6 = mσlєѕ σf cσ2
wt/30 = (44/44)/4
wt/30 = 1/4
4wt. = 30
wt. =7.5
αѕ wє hαvє tαkєn 2 mσlєѕ σf c2h6
∴  wt = 7.5 * 2
= 15
wє gєt 15gm σf c2h6

nσ. σf mσlєѕ = gívєn wєíght /atomic wєíght
= 15/30
= 0.5
0.5 moles of ethane is rєquired to produce 44g of co2 after comвustion.