1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Help with Propanal formulas

  1. Dec 13, 2007 #1

    Tak

    User Avatar

    1. The problem statement, all variables and given/known data

    I am trying to find a balanced equation for Propanol, and in addition - what is the Kcal/gram of Protonal


    2. Relevant equations

    I think I'm starting with CH3 CH2 CH2 OH (left side) and CO2 H20 (right side)

    3. The attempt at a solution


    CH3CH2CH2 OH to 6CO2 2H20 I'm not sure if that balances the equation or not. Additionally I have been trying to find information on Propanal being used as a bio fuel but all the sites I am able to pull up only talk about methanol and ethanol - what am I missing?

    Thanks allot





    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Dec 14, 2007 #2

    chemisttree

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    When you balance a formula, the same number of atoms of each species must be balanced. I notice that you have

    [tex]CH_3-CH_2-CH_2-OH \rightarrow\ 6CO_2 + 2H_2O[/tex]

    Is this balanced?
     
  4. Dec 14, 2007 #3

    Tak

    User Avatar

    OK, so if I count up the atoms in the original formula - CH3 CH2 CH2 OH (left side) and CO2 H20 (right side)

    C has 3 on the right 1 on the left
    H has 8 on the right 2 on the left
    O has 1 on the right 3 on the left

    Then to balance is it CH3 CH2 CH2 2OH - 2CO2 4H20 ?
     
  5. Dec 14, 2007 #4

    chemisttree

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    It should be: [tex]CH_3-CH_2-CH_2-OH \rightarrow\ 2CO_2 + 4H_2O[/tex]
    (but something(s) is wrong about it)

    The way I see it there are three carbons on the left and 2 on the right.
    There are 8 hydrogens on the left and 8 on the right.
    There is one oxygen on the left and 8 on the right.

    Is this balanced?
     
    Last edited: Dec 14, 2007
  6. Dec 21, 2007 #5
    Propanal / Propanol ?

    They are not the same thing, which one is it ?

    One is [tex]C_{3}H_{8}O[/tex] propanol (has 2 forms, propan-1-ol and propan-2-ol )

    The other is [tex]C_{3}H_{6}O[/tex] propanal


    Before you even start balancing you need to know which chemical you actualy mean. From contect of burning of fuels I assume it is propanol and propan-1-ol at that.


    P.S. What else is needed to make fire ... fuel + ?
     
    Last edited: Dec 21, 2007
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Help with Propanal formulas
  1. HELP! Chemical Formula (Replies: 3)

Loading...