What is the balanced equation and kcal/gram for propanol?

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Discussion Overview

The discussion revolves around finding a balanced chemical equation for propanol combustion and determining its kcal/gram value. Participants also explore the distinction between propanol and propanal, as well as the relevance of propanol as a biofuel.

Discussion Character

  • Homework-related
  • Debate/contested
  • Technical explanation

Main Points Raised

  • One participant proposes the initial formula for propanol as CH3CH2CH2OH and suggests a combustion reaction leading to 6CO2 and 2H2O, questioning if this is balanced.
  • Another participant points out the need for balancing the number of atoms on both sides of the equation and asks if the proposed equation is balanced.
  • A subsequent reply attempts to count the atoms in the original formula and suggests a new equation, questioning if CH3CH2CH2(2OH) → 2CO2 + 4H2O is correct.
  • Another participant reiterates the balancing attempt but identifies discrepancies in the number of carbons, hydrogens, and oxygens, indicating confusion about the balance.
  • One participant clarifies the difference between propanol (C3H8O) and propanal (C3H6O), emphasizing the importance of identifying the correct compound before balancing the equation.
  • This participant also suggests that the context of burning fuels implies the discussion is about propanol, specifically propan-1-ol.

Areas of Agreement / Disagreement

Participants express uncertainty about the correct balanced equation and the distinction between propanol and propanal. There is no consensus on the balanced equation, and the discussion remains unresolved.

Contextual Notes

Participants have not reached a conclusion regarding the balanced equation, and there are unresolved issues concerning the definitions and distinctions between propanol and propanal.

Tak
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Homework Statement



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


Homework Equations



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

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





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

CH_3-CH_2-CH_2-OH \rightarrow\ 6CO_2 + 2H_2O

Is this balanced?
 
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 ?
 
Tak said:
Then to balance is it CH_3-CH_2-CH_2-2OH \rightarrow\ 2CO_2 + 4H_2O ?

It should be: CH_3-CH_2-CH_2-OH \rightarrow\ 2CO_2 + 4H_2O
(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:
Propanal / Propanol ?

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

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

The other is C_{3}H_{6}O propanal


Before you even start balancing you need to know which chemical you actualy mean. From contact 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:

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