chemistry-bond energies

posted by .

Octane (C8H18) is the main hydrocarbon in gasoline. Using bond energies, calculate the amount of energy produced from 2.5 kilograms of octane.

I know how to do bond energies, but
If someone could tell me what to do with the 2.5 kg in this case and possibly tell me what answer i should get so i can work it out that would be great!

Thanks

  • chemistry-bond energies -

    You calculate the energy per mole octane from the balanced equation, then multiply that energy x (2,500g/molar mass octane) = ??

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. science

    1.The energy associated with the absorption of a photn of wavelength 4.26 micrometers is ______________?
  2. chemistry

    9. using bond energies, estimate the change in Hr for the following reaction. 2NO + O2--->2NO2 A 1624 kJ B -247kJ C 661 kJ D 54kJ 10. using bond energies estimate the change Hr for the follwing reaction C + 1/2O2 +1/2 N--->O=C=N …
  3. Chemistry (bond energies)

    Why is it possible to have an accurate value of the energy of a hydrogen-hydrogen bond, but not of a carbon-oxygen bond?
  4. Chemistry

    A quick question. When we use the bond energies to find delta H, should we use the sum of the bond energies of the reactants minus the sum of the bond energies of the products, or vice versa?
  5. Chemistry

    Explain why the calculated value for the (1) enthalpy of combustion for propane using bond energies (bond breaking and bond formation)might not be in close agreement to the values calculated using (2) Hess Law and the values calculated …
  6. Chemistry

    OF2(g) + H2O(g) -> O2(g) +2HF(g) ΔH°rxn = -318 kJ Using bond energies, calculate the bond dissociation energy of the O-F bond, in OF2. This is the question and I got 438 as the answer, which is wrong. I don't know what I did …
  7. Chemistry

    OF2(g) + H2O(g) -> O2(g) +2HF(g) ΔH°rxn = -318 kJ Using bond energies, calculate the bond dissociation energy of the O-F bond, in OF2. This is the question and I got 438 as the answer, which is wrong. I don't know what I did …
  8. chemistry

    By using the bond enthalpies and bond energies in thermochemical equations to calculate the reaction enthalpy of; H + Br=2HBr
  9. Chemistry

    Why is the Ge-F bond energy so much more than the Ge-Cl bond energy?
  10. CHEMISTRY

    The enthalpy of cimbustion for Octane vapor, C8H18, a component of gasoline, is -5512.0kJ/mol. a. Write the equation for the combustion of Octane, including the energy term. b. Calculate the energy change when 45g of Octane burn. c. …

More Similar Questions