Transesterification Study guides, Class notes & Summaries
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CHE 233 final exam Questions With Complete Solutions
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biodiesel correct answer: comprised of long-chain FAMES(fatty acid methyl esters) 
 
three methods for production of Biodiesel correct answer: -catalyzed transesterification 
2. acid-catalyzed transesterification 
3. saponification followed by acid-catalyzed transesterification 
 
method used in experiment correct answer: base-catalyzed transesterification 
 
a-linoleic acid correct answer: 17 carbon chain three double bonds 
 
linoleic acid correct answer: 17 carbon chain two double bonds...
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CHE 233 Lab Final Exam| 241 Questions| With Complete Solutions
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a domestic, renewable fuel for diesel engines derived from natural oils like soybean oil, and which meets certain requirements specified by international standards correct answer: general definition of biodiesel 
 
a fuel comprising of long-chain fatty acid methyl esters (FAMEs) derived from vegetable oils or animal fats, designated B100 and meeting standard requirements correct answer: technical definition of biodiesel 
 
what are the three commercial methods for making fatty acid methyl este...
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CHE 233 FINAL UKY QUESTIONS WITH COMPLETE SOLUTION
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What is biodiesel correct answer: a fuel comprising long-chain fatty acid methyl esters (FAMEs) derived from vegetable oils or animal fats, designated B100 and meeting standard requirements. 
 
What methods can be used to make fatty acid methyl esters (FAME's)? correct answer: -Base-catalyzed transesterification 
-Acid-catalyzed esterification 
-Saponification of the oil to yield free fatty acids, followed by acid catalyzed esterification 
 
What are fatty acids? correct answer: carboxylic ...
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CHE 233 Final UKY Questions With Complete Solutions
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Unsaturated fatty acids - have one or more C=C bonds 
 
Saturated fatty acids - Have no C=C bonds 
 
What are the ways that biodiesel is produced commercially? Which method is the predominant method? - 1) Base-catalyzed transesterification of the oil with methanol and one used in lab. 
2)Acid-catalyzed esterification of the oil with methanol 3) Saponification of the oil to yield free fatty acids, followed by acid catalyzed esterification. 
 
Match the products and catalyst for the following tran...
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CHE 233 Final| 65 Questions | With Complete Solutions
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What are saturated vs unsaturated fatty acids? correct answer: •Saturated fatty acids have no C=C bonds (their C's have max # of Hs) 
•Unsaturated fatty acids have one or more C=C bonds (monosaturated = one double bond) (polyunsaturated = more than 1 double bond) 
•Z (cis) are naturally occurring double bonds; E (trans) are artificial double bonds 
 
How is biodiesel produced commercially? Which method is predominant? correct answer: ***1) Base catalyzed transesterification of oil with ...
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CHE 233 Final Exam Questions With Complete Solution
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Unsaturated fatty acids ______________. correct answer: have one or more C=C 
 
saturated fatty acids _________________. correct answer: do not have ANY C=C bonds, only C-C. 
 
what ways is biodiesel produced commercially? correct answer: * base catalyzed transesterification of the oil with methanol (what we used) 
* acid catalyzed esterification of the oil with methanol 
*saponification of the oil to yield free fatty acids, then acid catalyzed esterification 
 
FAME stands for: correct answe...
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CHE 233 Final UKY Organic 2 Chemistry Lab Questions With Complete Solutions
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Determine the limiting reagent and excess reagent in the reaction you will perform in this experiment. correct answer: Excess Reagent: methanol 
Limiting Reagent: triglyceride 
 
Unsaturated Fatty Acids correct answer: have one (or more) C=C bonds. 
 
Saturated Fatty Acids correct answer: have no C=C bonds. 
 
The addition of water to sodium methoxide produces _______________ and ________________ correct answer: Sodium Hydroxide; Methanol 
 
After completion of the experiment, where do you d...
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Organic chemistry 207 Questions With Correct Answers
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Organic chemistry |207 Questions| With Correct Answers. 
isopropyl alcohol 
phenols 
Hydroquinone 
Ubiquinone (coenzyme Q) 
Ubiquitin 
Phylloquinone and Menaquinone 
phosphatides 
triacylglycerol 
fatty acyl group 
glyceraldehyde 
aldose 
Free Fatty Acids (FFA) 
saturated fatty acid 
unsaturated fatty acid 
Disubstituted double bond 
saponification reaction 
transesterification 
ammonium 
pyrophosphates 
phosphonic acid structure 
benzoquinone 
Alkane, Alkyne, Alkene 
Diols/glcols 
Aldehydes 
Al...
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CHE233 Final Questions And Answers
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Determine the limiting reagent and excess reagent in the reaction you will perform in this experiment. correct answer: Limiting reagent- triglyceride 
Excess reagent- methanol 
 
unsaturated fatty acids correct answer: one/more C=C bonds 
 
saturated fatty acids correct answer: no C=C bonds 
 
The addition of water to sodium methoxide produces_________ & ________ correct answer: sodium hydroxide, methanol 
 
After completion of the experiment, where do you dispose of FAMEs? correct answer: ...
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CHE 233 final exam| 103 Questions | With Complete Solutions
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Determine the limiting reagent and the excess reagent for the biodiesel lab 
 
Excess reagent _____________ 
limiting reagent _____________________ correct answer: methanol, triglyceride 
 
Complete the statements below by matching the following 
 
saturated fatty acids have ______ __________ bonds 
 
unsaturated fatty acids have _____ ____________ bonds correct answer: no C=C, one C=C 
 
The addition of water to sodium methoxide produces ___________ _______________ and _________________ corre...