Knowee
Questions
Features
Study Tools

n the following combustion reaction, predict the two products.C12H26 + O2 --> _________

Question

In the following combustion reaction, predict the two products.

C12H26 + O2 --> _________
🧐 Not the exact question you are looking for?Go ask a question

Solution

1. Break Down the Problem

We begin by identifying the reactants in the combustion reaction, which are a hydrocarbon (C12H26C_{12}H_{26}) and oxygen (O2O_2). Our goal is to predict the products of this combustion reaction.

2. Relevant Concepts

In a complete combustion reaction of a hydrocarbon:

  • The products are carbon dioxide (CO2CO_2) and water (H2OH_2O).
  • A combustion reaction typically follows the general formula: CxHy+O2CO2+H2O C_xH_y + O_2 \rightarrow CO_2 + H_2O

3. Analysis and Detail

For the complete combustion of dodecane (C12H26C_{12}H_{26}):

  • Each carbon (CC) atom produces one molecule of carbon dioxide (CO2CO_2).
  • Each pair of hydrogen (HH) atoms produces one molecule of water (H2OH_2O).

From C12H26C_{12}H_{26}:

  • There are 12 carbon atoms, which will produce 12CO212 CO_2.
  • There are 26 hydrogen atoms, which will produce 262=13H2O \frac{26}{2} = 13 H_2O molecules.

4. Verify and Summarize

The overall reaction should balance with respect to the number of each type of atom. Therefore, we will also need to calculate the amount of O2O_2 required.

The balanced equations can be summarized as follows: C12H26+O212CO2+13H2O C_{12}H_{26} + O_2 \rightarrow 12 CO_2 + 13 H_2O

To determine the number of O2O_2 molecules required, we calculate:

  • From the products, there are 12×2=2412 \times 2 = 24 oxygen atoms in CO2CO_2 and 13×1=1313 \times 1 = 13 oxygen atoms in H2OH_2O.
  • This gives a total of 24+13=3724 + 13 = 37 oxygen atoms needed.
  • To find how many O2O_2 we need, we divide by 2: 372=18.5 \frac{37}{2} = 18.5 molecules of O2O_2.

Final Answer

The balanced equation is: C12H26+18.5O212CO2+13H2O C_{12}H_{26} + 18.5 O_2 \rightarrow 12 CO_2 + 13 H_2O
Thus, the two predicted products are CO2CO_2 (carbon dioxide) and H2OH_2O (water).

This problem has been solved

Similar Questions

Which of the following would be produced in a combustion reaction?A.A hydrocarbonB.OxygenC.HydrogenD.Carbon dioxideSUBMITarrow_backPREVIOUS

Which of the following is a necessary reactant for combustion?A.Carbon dioxideB.Water vaporC.HydrogenD.OxygenSUBMITarrow_backPREVIOUS

Balance the following combustion reaction.  (Remember to type a "1" for any blank coefficient line) C3H8 +  O2 -->  CO2 +  H2O

Which of the following is a necessary product of a combustion reaction?A.A hydrocarbonB.OxygenC.HeatD.A precipitateSUBMITarrow_backPREVIOUS

Select the correct coefficients to balance the equation showing complete combustion of C5H12. ...C5H12(l)+ ...O2(g) → ...CO2(g) + ...H2O (g)

1/3

Upgrade your grade with Knowee

Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.