Ethanol Alcohol and its Effects on Gasoline (page 3)

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Author: Robert S.


Conclusion- In conclusion, my hypothesis was proved both correct and wrong. My hypothesis was that adding higher levels of ethanol alcohol to gasoline would decrease the run time of a motor. In the experiment, when I ran the trials for 93 octane gasoline containing 10% commercially blended ethanol alcohol, this mixture ran the longest for 225 seconds. This result proved my hypothesis correct. However when I started running the trials where I added higher levels of ethanol alcohol to the gasoline, 89 octane gasoline with 20% ethanol alcohol ran longest for 219 seconds. This went against my hypothesis. The reason for this is because the 89 octane gasoline with 20% ethanol alcohol ran for 219 seconds which was longer that the 89 octane gasoline with only 10% ethanol alcohol.

Questions for Further Research

  1. Using a flex motor, would the results of your project change?
  2. What would the results be if you used 100% pure gasoline?


  1. Gasoline--is it all the same? what about octane?. (2008). American Petroleum Institute, Retrieved from
  2. Ethanol 101. (2010). American Coalition for Ethanol , Retrieved from
  3. Mosier, Nathan. (2006). Bioenergy. Unpublished manuscript, Department of Agriculture and Biological Engineering , Purdue University, Retrieved from
  4. Natural gas. (2009, November 20). Retrieved from
  5. Packard, Kathleen. (2007). Chemistry. Shoreview, Minnesota: Pearson
  6. Brown, Theodore. (2006). Chemistry the central science. Upper Saddle River, New Jersey: Pearson.
  7. Federal Trade Commission , (2003). Facts for consumers Retrieved from
  8. Internal combustion engine . (2010, October 12). Retrieved from
  9. Campbell, Reece. Biology AP Edition. 7th ed.. Pearson, Benjamin Cummings, 2005. Print.
  10. Hart , Harold. (2007). Organic chemistry, a short course. Boston, Ma: Houghton Mifflin.
  11. Smith, Tavernier. (1994). Glossary of class names. Retrieved from
  12. Marye Anne Fox and James K. Whitesell, Organic Chemistry, 3rd ed.  Sudbury:  Jones and Bartlett Publishers
  13. Chemistry 101. (2010, November 14). Retrieved from


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