UTA ORGANIC CHEMISTRY LAB 2181 QUIZ QUESTIONS
AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) ALREADY GRADED A+
Which of the following is not a consideration when selecting a solvent
for recrystallization? Ans✓✓✓The compound of interest should be
soluble in the solvent at low temperatures.
Hot filtration does not require a ______. Ans✓✓✓buchner funnel
Which solvent has the highest boiling point? Ans✓✓✓water
Recrystallization is used to purify ________ compounds. Ans✓✓✓solid
Which of the following compounds is the least polar? Ans✓✓✓Hexane
In an extraction procedure, it is advisable to: Ans✓✓✓save all layers
until an experiment is complete.
Which of the following is incorrect for the description of diethyl ether
(often called ether)? Ans✓✓✓Ether vapor is lighter than air
Organic chemists perform extractions of reaction mixtures several times
to maximize product yield. How many extractions would it generally
take to acquire 99% yield of the product? Ans✓✓✓Three extractions.
, The total numbers of stereoisomers of Tartaric Acid are: Ans✓✓✓3
The two molecules constituting the racemate you will be resolving in
today's lab include: Ans✓✓✓(R)-(+)-1-phenylethylamine and (S)-(-)-1-
phenylethylamine
In which solvent does the racemic 1-Phenylethylamine is dissolved
during the formation of Diastereomeric mixture in this experiment?
Ans✓✓✓Methanol
What is the relation between configuration and optical rotation?
Ans✓✓✓No relation
In this experiment, phosphoric acid is best classified as a(n) ________.
Ans✓✓✓catalyst
Cyclohexanol has a higher boiling point than cyclohexene due to _____.
Ans✓✓✓intermolecular hydrogen bonding
The conversion of cyclohexanol to cyclohexene is considered a _______
reaction. Ans✓✓✓dehydration and elimination
Which of the following is/are commonly used as a test for unsaturation?
I. 2% KMnO4 in water
II. bromine in dichloromethane
AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) ALREADY GRADED A+
Which of the following is not a consideration when selecting a solvent
for recrystallization? Ans✓✓✓The compound of interest should be
soluble in the solvent at low temperatures.
Hot filtration does not require a ______. Ans✓✓✓buchner funnel
Which solvent has the highest boiling point? Ans✓✓✓water
Recrystallization is used to purify ________ compounds. Ans✓✓✓solid
Which of the following compounds is the least polar? Ans✓✓✓Hexane
In an extraction procedure, it is advisable to: Ans✓✓✓save all layers
until an experiment is complete.
Which of the following is incorrect for the description of diethyl ether
(often called ether)? Ans✓✓✓Ether vapor is lighter than air
Organic chemists perform extractions of reaction mixtures several times
to maximize product yield. How many extractions would it generally
take to acquire 99% yield of the product? Ans✓✓✓Three extractions.
, The total numbers of stereoisomers of Tartaric Acid are: Ans✓✓✓3
The two molecules constituting the racemate you will be resolving in
today's lab include: Ans✓✓✓(R)-(+)-1-phenylethylamine and (S)-(-)-1-
phenylethylamine
In which solvent does the racemic 1-Phenylethylamine is dissolved
during the formation of Diastereomeric mixture in this experiment?
Ans✓✓✓Methanol
What is the relation between configuration and optical rotation?
Ans✓✓✓No relation
In this experiment, phosphoric acid is best classified as a(n) ________.
Ans✓✓✓catalyst
Cyclohexanol has a higher boiling point than cyclohexene due to _____.
Ans✓✓✓intermolecular hydrogen bonding
The conversion of cyclohexanol to cyclohexene is considered a _______
reaction. Ans✓✓✓dehydration and elimination
Which of the following is/are commonly used as a test for unsaturation?
I. 2% KMnO4 in water
II. bromine in dichloromethane
