Problem: Gasoline is composed primarily of hydrocarbons, including many with eight carbon atoms, called octanes. One of the cleanest-burning octanes is a compound called 2,3,4-trimethylpentane, which has the structural formula shown in the figure . The complete combustion of one mole of this compound to CO2 (g) and H2O(g) leads to HH = -5064.9 { m kJ/mol}.Write a balanced equation for the combustion of 1 mol of C8H18 (l).

FREE Expert Solution

We're being asked to write the combustion reaction for 2,3,4-trimethylpentane acid, C8H18 (l)


Recall that in combustion analysisa compound reacts with excess O2 to form products


For a compound composed of C and H the reaction looks like this:


CxHy + O2 (excess) x CO2 + y H2O


We will do the following steps:

Step 1: Write the chemical reaction 

Step 2: Balance the chemical reaction

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Problem Details

Gasoline is composed primarily of hydrocarbons, including many with eight carbon atoms, called octanes. One of the cleanest-burning octanes is a compound called 2,3,4-trimethylpentane, which has the structural formula shown in the figure A CH is single bonded left and above to CH3 and right to CH, which is single bonded above to CH3 and right to CH.  That CH is single bonded above and right to CH3.. The complete combustion of one mole of this compound to CO2 (g) and H2O(g) leads to HH = -5064.9 .

Write a balanced equation for the combustion of 1 mol of C8H18 (l).

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Stoichiometry concept. You can view video lessons to learn Stoichiometry. Or if you need more Stoichiometry practice, you can also practice Stoichiometry practice problems.