Carbocations Study guides, Class notes & Summaries

MCAT AAMC FL 1EXAM QUESTIONS AND ANSWERS What was the principal factor determining the migration of individual components in a sample when performing chromatography? -Answer-the relative amount of hydrogen bonding to the stationary phase Rf value -Answer-Distance travelled by substance / distance travelled by solvent stereospecific reaction -Answer-a special type of stereoselective reaction in which the stereochemistry of the product is dependent on the stereochemistry of the starting mate...

What was the principal factor determining the migration of individual components in a sample when performing chromatography? - the relative amount of hydrogen bonding to the stationary phase Rf value - Distance travelled by substance / distance travelled by solvent stereospecific reaction - a special type of stereoselective reaction in which the stereochemistry of the product is dependent on the stereochemistry of the starting material if two different isomer products form, that m...

In an individual who is starving or fasting, the body meets its need for glucose first by the process of ________, and then by the process of ________. - ANSWERS>>>glycogenolysis; gluconeogenesis The pathway followed by glucose when energy is needed is - ANSWERS>>>glycolysis. The alcohol functional group has - ANSWERS>>>a carbon-oxygen-hydrogen group. The commonly accepted mechanism for explaining alkene reactions involves formation of - ANSWERS>>>carboc...

enantiomers are formed from __________ carbocation - achiral __________ are formed from chiral carbocation - enantiomers grignard reagents attack (most/least?) substituted epoxide? - least grignard reagents are used for (carbanion/carbocation?) generation. - carbanion we wat to use grignard reagents in (acidic/non-acidic?) conditions. - non-acidic if acidic conditions, it will suffer proton transfer hyperconjugation is (de/stabilizing?) for carbanions. - desta...

MCAT AAMC FL 1EXAM QUESTIONS AND ANSWERS What was the principal factor determining the migration of individual components in a sample when performing chromatography? -Answer-the relative amount of hydrogen bonding to the stationary phase Rf value -Answer-Distance travelled by substance / distance travelled by solvent stereospecific reaction -Answer-a special type of stereoselective reaction in which the stereochemistry of the product is dependent on the stereochemistry of the starting mate...

CHEM 210 Final Exam Questions with Answers All Correct Which molecule is an ester - Answer All of the carbon backbones from amino acids end up as intermediates in the ________. - Answer-citric acid cycle When 2-butene reacts completely with bromine, the product is - Answer-2,3- dibromobutane. Amino acids that can be synthesized in the body are called ______ amino acids. - Answer-nonessential Which conversion is accomplished during glycolysis? - Answer-glucose to pyruvate Every turn of...

CHEM 210 Final Exam Questions with Answers All Correct Which molecule is an ester - Answer All of the carbon backbones from amino acids end up as intermediates in the ________. - Answer-citric acid cycle When 2-butene reacts completely with bromine, the product is - Answer-2,3- dibromobutane. Amino acids that can be synthesized in the body are called ______ amino acids. - Answer-nonessential Which conversion is accomplished during glycolysis? - Answer-glucose to pyruvate Every turn of...

E2 Reaction - One-Step with no intermediates, Base takes off proton + LG leaves with double bond formation. What type of carbons do E2 rxns favor? - Tertiary What is a Zaitsev product? - Double bond formation on more substituted carbon What is a Hoffman product? - Double bond formation on less substituted carbon When using a stericallly hindered base (t-BuOK, LDA), which product is more favorable? - Hoffman When using Eto- or less sterically hindered base, which pro...

Chapter 1-Structure and Bonding:Acids and Bases 1. How many total valence electrons are represented in the following electron configuration? 1s22s22px2 2py2 2pz1 or 1s22s22p5 a. 1 b. 3 c. 5 d. 7 e. 9 ANS: D Instructions: Write valid Lewis (electron-dot) structures for each formula below. Show all electrons as dots and show all nonbonding electrons. 2. Write: CH3CH2OH ethanol ANS: 3. The structure of urea is shown below. Fill in any nonbonding valence electrons that are missing from the l...

CHEM 210 Final Exam Questions with Answers All Correct Which molecule is an ester - Answer All of the carbon backbones from amino acids end up as intermediates in the ________. - Answer-citric acid cycle When 2-butene reacts completely with bromine, the product is - Answer-2,3- dibromobutane. Amino acids that can be synthesized in the body are called ______ amino acids. - Answer-nonessential Which conversion is accomplished during glycolysis? - Answer-glucose to pyruvate Every turn of...