Chemical Forums
Chemistry Forums for Students => High School Chemistry Forum => Topic started by: abeautifulleto on December 12, 2006, 08:39:29 PM
-
i need help at balancing this!!
C5H12 + O2 CO + H2O
-
Get the reaction correct first, then it is easier to balance.
C5H12 + O2 -> CO2 + H2O
Also, please read the forum rules.
-
its not CO2 its CO
-
It is only CO if you have a limited supply of oxygen, which your initial reaction does not indicate.
Hydrocarbon + Oxygen gives you CO2 and water, no way around it. This is called combustion.
-
http://funbasedlearning.com/chemistry/chembalancer3/ques4.htm
lol i didnt write it. i cant figure it out
-
They want 2,11,10,12. But it is a poor question. But since this is not homework and you are just playing I figured I would just tell you.
It is quite easy to balance.
-
thank you so much! how did you figure it out??
-
thank you so much! how did you figure it out??
Start with carbon, you have 5 carbon on the left so put a 5 in front of the CO.
You have 12 hydrogen on the left, and there is 2 in H2O, so you put a 6 in front of H2O
Now count how many oxygens you have on the right, 5+6=11
This means you need 11 oxygen atoms on the left, but since oxygen is diatomic (O2) you need 5 and 1 half molecule of O2 to get 11 oxygen atoms.
Now, that is perfectly acceptable, but a lot of people want the coefficients to be whole numbers, so you multiply the 5.5 x 2 to get 11, and multiply everything else by 2.
-
your a freakin genious!