Ethanol Post Lab Questions
Refer to the: Web Reading List1. Explain the genetic importance of the protein zymase in the production of ethanol in a sentence or two.
2. What year was ethanol first used in an internal combustion engine?3. Show your calculations for the following problems.
A) How much energy (kJ) could be produced from the oxidation of one gallon of pure ethanol (d =0.789 g/mL)? The amount of energy produced per mole of ethanol is -1367.6 ± 0.3 kJ/mol.
B) How much energy (kJ) could be produced from the combustion of 1 gallon of isooctane (C8H18 , gasoline), d= 0.69 g/mL? The amount of energy produced per mole of isooctane is −5460.0 kJ/mol.
5. Name three different test methods that have been used to test the amount of ethanol in a sample of breath.
6. Using your own body weight, determine the probable range for blood alcohol level after drinking 2 beers in 60 minutes. Would you be able to drive legally or would you be considered DUI (Driving Under the Influence)?
7. How long does it take for alcohol to peak in the bloodstream from the time that it is taken into the body?
DO NOT turn-in answers to the following questions:1) Have you had an alcoholic drink before you were 21?2) Do more teenage males drink than females?
3) Rank the use by teens from highest to lowest of the following controlled substances: marijuana, cigarettes (tobacco), alcohol
4) If you are a female, have you ever had four or more consecutive drinks? If you are a male, have you ever had five or more consecutive drinks?
Compare your answers to the results of a survey published by the National Center on Addiction and Substance Abuse: Survey comparisons