CHEM 219 MODULE 3 REVIEW FULL
QUESTION SET WITH ACCURATE
ANSWERS
◉ A drug given to pregnant women in the late 50s as a treatment
for nausea where one enatiomer was active as a therapeutic and
the other caused severe birth defects
Answer: Thalidomide
◉ The percent composition of an unknown mixture of
enantiomers can be determined using a device known as ________
Answer: Polarimeter
◉ With polarimetry the rotation of light by individual
enantiomers is always:
Answer: equal but opposite
◉ The measurement of the optical activity of a pure single
enantiomer of a compound gives the value known as the:
Answer: specific rotation
◉ The specific rotation is a:
Answer: unique property of each enantiomer that can be used to
help identify a compound
QUESTION SET WITH ACCURATE
ANSWERS
◉ A drug given to pregnant women in the late 50s as a treatment
for nausea where one enatiomer was active as a therapeutic and
the other caused severe birth defects
Answer: Thalidomide
◉ The percent composition of an unknown mixture of
enantiomers can be determined using a device known as ________
Answer: Polarimeter
◉ With polarimetry the rotation of light by individual
enantiomers is always:
Answer: equal but opposite
◉ The measurement of the optical activity of a pure single
enantiomer of a compound gives the value known as the:
Answer: specific rotation
◉ The specific rotation is a:
Answer: unique property of each enantiomer that can be used to
help identify a compound
