1. Questions

college chemistry

How many megajoules are released when 9.0 gal of gasoline burns.
how do I start to do this problem, and what are the steps to get there.
thank you

  1. 👍
  2. 👎
  3. 👁
Linda

  1. 1. Write and balance the equation.
    2. Use density gasoline to convert 9.0 gallons to grams.
    3. Look up the heat of combustion or calculate it from the delta H formation values.
    4. heat combustion x (grams gasoline/molar mass gasoline).

    Post your work or supply details (numbers) if you run into trouble.

    1. 👍
    2. 👎
    DrBob222

  2. 6.7mJ

    1. 👍
    2. 👎
    Anonymous

Respond to this Question

First Name

Your Response

Similar Questions

  1. PHYSICS

    Given: The energy equivalent of one gallon of gasoline is 1.3 × 108 J. A compact car has a mass of 847 kg, and its efficiency is rated at 18.1%. (That is, 18.1% of the input power available is delivered to the wheels.) Find the

  2. chemistry

    An automobile gasoline tank holds 15.0 gal when full. How many pounds of gasoline will it hold if the gasoline has a density of 0.737 g/mL?

  3. chemistry

    In Europe, gasoline efficiency is measured in km/L. If your car's gas mileage is 21.0 mi/gal , how many liters of gasoline would you need to buy to complete a 142-km trip in Europe? Use the following conversions: 1km=0.6214mi and

  4. Chemistry

    In Europe, gasoline efficiency is measured in km/L . If your car's gas mileage is 28.0 mi/gal, how many liters of gasoline would you need to buy to complete a 142-km trip in Europe? Use the following conversions: 1km=(0.6214mi)

  1. math

    a 12.0 gallon gasoline tank holds 66.0 pounds of gasoline. If this gasoline cost $3.50/gallon, what is the cost of 1 gram of gasoline.. I need help with just the set up part.. I don't know where to start.. help please

  2. calculus

    An automobile computer gives a digital readout of fuel consumption in gallons per hous. During a trip, a passenger recorded the fuel consumption every 5 minutes for a full hour of travel. time: 0 / gal/h: 2.5 time: 5 / gal/h: 2.4

  3. Chemistry

    Calculate the number of pounds of CO2 released into the atmosphere when a 20.0 gallon tank of gasoline is burned in an automobile engine. Assume that gasoline is primarily octane, C8H18, and that the density of gasoline is 0.692

  4. chemistry

    In Europe, gasoline efficiency is measured in km/L. If your car's gas mileage is 27.0 mi/gal , how many liters of gasoline would you need to buy to complete a 142-km trip in Europe? Use the following conversions: 1km=0.6214mi and

  1. chemistry

    A particular brand of gasoline has a density of 0.737 g/mL at 25 ∘C. How many grams of this gasoline would fill a 13.2 gal tank (1US gal=3.78L)?

  2. chemistry

    ethanol(C2H5OH)and gasoline(assumed to be octane,C8H18) are both used as automobile fuel.if gasoline is selling for $2.20/gal,what would the price of ethanol have to be in order to provide the same amount of heat per dollar?The

  3. physic

    by how many newtons do you increase the weight of your car when you fill up your 11.5 gal gas tank with gasoline a gallon is equal to 3.788 L and the density of gasoline is 737kg/m3

  4. Honors Chemistry

    An automobile gasoline tank holds 45 kg of gasoline. When the gasoline burns, 158 kg of oxygen are consumed and carbon dioxide and water are produced.What is the total combined mass of carbon dioxide and water that is produced?

You can view more similar questions or ask a new question.