University of Kentucky

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...

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 ...

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...

Structure of 6,13-diphenylpentacene correct answer: 5 aromatic rings with 2 phenols attached at 6 and 13 What is the purpose of base in the aldol condensation reaction? correct answer: To react with an alpha hydrogen to form a nucleophile (the enolate anion) and as a catalyst Hexynide lithium reacts with 6,13-diphenylpentacene via.... correct answer: Nucleophilic addition to carbonyl What is the role of tin(II) chloride in the synthesis of pentacene derivative? correct answer: it re...

Mass spectrometry correct answer: Technique that sorts ions based on their mass to charge ratio Electron ionization correct answer: -Also known as hard ionization -Very energetic, produces fragments ("daughter ions") Electrospray ionization correct answer: -Also known as soft ionization -Species remains intact, form ions by attaching H+ (+1 amu) or Na+ (+23 amu) 3:1 correct answer: Mass spectrometry ratio that appears for Cl 1:1 correct answer: Mass spectrometry ratio that a...

In the experiment, you added water to the reaction vessel after the reaction was complete, but we did not discuss why. Based on what happened after adding the water, which of the following is the reason for the addition of water? a) lower the solubility of the product in solution so it precipitated out b) increase the solubility of the product in solution so it precipitated out c) lower the solubility of the product in solution so it stayed in solution d) increase the solubility of the pr...

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...

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...

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: ...

Safety Quiz ….Safety Quiz Identify the equipment best suited for extinguishing each type of fire. 1. small benchtop fire fire on floor ing fire correct answer: urned beaker extinguisher blanket Move to the safety shower if you spill hazardous chemicals on your ___(A)___ .Stand under the shower and ___(B)___the lever. Remove clothing and continue flushing the area for __(C)__. correct answer: A. Skin or clothing B. Pull C. 15 minutes It is often helpful to remember the acro...