CHE 233 FINAL EXAM WITH COMPLETE ANSWERS { GRADED A+}
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Course
CHE 233
Institution
CHE 233
CHE 233 FINAL EXAM WITH COMPLETE
ANSWERS { GRADED A+}
have one (or more) C=C bonds - unsaturated fatty acids
have no C=C bonds - saturated fatty acids
What are the ways that biodiesel is produced commercially? - 1.
Base-catalyzed transesterification of the oil with methanol (approach
we wi...
have one (or more) C=C bonds - ✔✔unsaturated fatty acids
have no C=C bonds - ✔✔saturated fatty acids
What are the ways that biodiesel is produced commercially? - ✔✔1.
Base-catalyzed transesterification of the oil with methanol (approach
we will use)
2. Acid-catalyzed esterification of the oil with methanol
3.Saponification of the oil to yield free fatty acids, followed by acid
catalyzed esterification
What is the prominent method to produce biodiesel commercially? -
✔✔Base-catalyzed transesterification
, FAMEs - ✔✔Fatty Acid Methyl Esters
Limiting reagent in biodiesel experiment - ✔✔Triglyceride
XS reagent in biodiesel experiment - ✔✔Methanol
What shifts equilibrium to the right in biodiesel experiment? - ✔✔xs
methanol
Water + Sodium methoxide produces - ✔✔Sodium hydroxide &
methanol
How is the product in biodiesel experiment characterized?
What differences are you looking for? - ✔✔1H-NMR of FAME
single prominent peak due to methoxy proton
disappearance of multiplet peaks due to triglyceride protons
How is Le-Chatelier's principle applicable to the transesterification
reaction in the preparation of FAMEs? - ✔✔Proves that using xs alcohol
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