Last week, Slate published the first installment of the "Green Challenge," a program that helps participants reduce the amount of carbon dioxide they put into the atmosphere. We started by asking people to think about the effects their cars have on the environment: "For each gallon of gas your car burns, it releases about 19 pounds of carbon dioxide." Explainer readers wondered about this statistic: If a gallon of gasoline weighs about 6 pounds, how can it produce three times that much greenhouse gas?
The carbon from the gasoline mixes with oxygen from the air. Gasoline consists mostly of hydrocarbons-chains of carbon encircled by atoms of hydrogen. When the hydrocarbons burn, they break apart and recombine with the air. This reaction produces heat, as well as two chemical byproducts: water and carbon dioxide.
For example, consider a single molecule of octane-a typical hydrocarbon that you'd find in gasoline. Octane consists of eight atoms of carbon and 18 atoms of hydrogen, written as C8H18. If you break down the octane and mix it with enough oxygen (O2), you've got the ingredients-i.e., the atoms of carbon, hydrogen, and oxygen-to make eight molecules of carbon dioxide (CO2) and nine molecules of water (H2O). The eight molecules of CO2 weigh about three times more than the one molecule of octane you started with. That doesn't mean you've violated the law of conservation of mass; instead, you've added the weight of the oxygen from the air to the weight of the carbon from the gasoline. (For a more in-depth discussion of this reaction,
This reaction gives only a general sense of what happens when you burn a gallon of gas. First, the combustion that occurs in a car engine doesn't work perfectly, which means not every hydrocarbon gets converted into carbon dioxide and water vapor. Sometimes there's not enough oxygen available to complete the reaction, in which case hydrocarbons can be converted into poisonous carbon monoxide (CO). Burning gasoline can also release nitrous oxide and other gases.
Second, gasoline consists of octane along with many other kinds of hydrocarbons. You'll also find additives like surfactants, freezing-point depressants, corrosion inhibitors, and dyes. These nonhydrocarbon additives might make up half a percent of the total composition of the gasoline. There are also differences between winter and summer blends, low- and high-octane, and leaded and unleaded.
Thus, any estimate of the amount of carbon dioxide that comes from a gallon of gas must be based on some assumptions. The Environmental Protection Agency starts with a guess for how many grams of carbon are in each gallon of gas. First, they determine how much carbon is in each particular kind of gasoline, and then they come up with a weighted average based on consumption levels for each variety. Using this method, they estimate that a gallon of gas contains, on average, 2,421 grams of carbon. That's enough to make 8,877 grams of CO2. They multiply that number by 0.99 to account for the carbon that doesn't react fully with the oxygen. Their result: 8,788 grams, or about 19.4 pounds. (The Energy Information Administration gives a slightly higher number-19.564
Density of Octane= .703g/ml=703G/Litre
3.78541 Litres/Us Gal
So gram/gallon= 703G/Litre x3.78541 Litres/Us Gal=2661.14323 gram/gallon of Octane
The answer is (for an US gallon): 232,96 moles.
703 Gram / Litre
1.3 grams/deciliter, since there is 10 dl in 1 liter!
One liter of ammonia (NH3) weight 0,73 g at 15 0C and 1,013 bar.
10 milligrams
Gasoline (or gas aka. petrol) is the word used in North America for fuel used in automobile. Benzene is a natural constituent of crude oil, highly flammable and one of the basic petrochemicals. Benzene is used as additive in gasoline to improve octane rating but now limited due to its known carcinogen. However, in many countries, gasoline has a colloquial name derived from that of the chemical benzene e.g., GermanBenzin, Dutch Benzine, Thai Benzin. In other countries, especially in Latin America where Spanish-predominates, it has a colloquial name derived from that of the chemical naphtha e.g. Argentine/ Uruguaian/ Paraguaian nafta. However, the standard Spanish word is "gasolina".
744 g/L of ammonium sulphate, at 20 0C
There are many different grades of gasoline, each with a different octane rating. Early gasoline had very low octane in many cases, from the 1920s to the 1970s octane rating was improved by adding a highly poisonous chemical called tetraethyl lead and ranged from about 90 to 110 octane, most modern cars can run on 87 octane unleaded (now considered "regular" grade gasoline), "premium" grade gasoline is around 90 to 92 octane unleaded, airplane gasoline is typically 130 octane leaded.
100 octanes
Gasoline is a mixture of several hydrocarbons. The most predominant hydrocarbon is octane, or C8H18, which is why many gasolines have an octane rating.
C8H18. I assume you mean how many moles octane in 16 grams. 16 grams C8H18 (1 mole C8H18/114.224 grams) = 0.140 moles octane
It depends on the type of gasoline, and other factors such as temperature and pressure, but gasoline has an approximate density of 737.22 kilogram/cubic meter. 737.22 kilogram/cubic meter = 0.73722 kilogram/liter = 737.22 gram/liter 42.4 liters * 0.73722 kilograms/liter = 31.258 kilograms or since you wanted grams, not kilograms... 42.4 liters * 737.22 gram/liter = 31258 grams(http://forum.onlineconversion.com/showthread.php?t=1114)
Petrol (gasoline) usually has an octane rating. It is a mixture. Since Octane is C8 a molecule of petrol (gasoline) contains approximately 8 carbon atoms.
About 19.6 gallons.
129 (grams per liter) = 129,000,000 micrograms per liter.
Many car engines run on gasoline. If the octane is low, the engine will knock. If it is high, the engine will not knock, which means that sometimes it will make a knocking sound as you drive along. It also might keep running when you turn off the key to the car. With high octane, the engine also starts easier. It is more expensive to make high octane fuel. Lower octane fuel gets better milage. There are two organic chemicals: isooctane and heptane. Isooctane is a good fuel for cars. It is rated at 100 octane. Heptane is a bad fuel for cars. It is rated at zero octane. When gasoline is made, they need to make a certain octane. They put the gasoline in a car engine. They then run the car with a mixture of isooctane and heptane. They find the mixture that matches the batch of gasoline. That is the octane rating of the new batch of gasoline.
That all depends on what substance fills the liter of space.A liter of air has a small amount of mass in it (very few grams).A liter of water has more mass in it (more grams).A liter of concrete has even more mass in it (lots of grams).An empty liter has no mass in it (no grams).
10 grams per liter
1.3 grams/deciliter, since there is 10 dl in 1 liter!