Organic chemistry 1 lab Midterm Exam
2026 Questions and Answers
distillation - Correct answer-is a process by which we separate compounds based
on their boiling points (many organic compounds are volatile)
Volatile - Correct answer-is a characteristic of chemical that they exhibit a
relatively high vapor pressure and they have a relatively low boiling point,
Compounds that exhibit a high vapor pressures are more easily evaporated by
applying heat (by applying heat we can separate the more volatile compound form
the less volatile compound)
heat - Correct answer-By applying _____ we can separate the more volatile
compound form the less volatile compound.
cyclohexene - Correct answer-is a six member ring with no unsaturations (double
bonds)
toluene - Correct answer-is a six member ring with alternating unsaturations (a
benzene ring) with one methyl substitution
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, miscible liquids - Correct answer-Two liquids that can dissolve into each other
(must have similar polarities), Cyclohexene and toluene are both miscible liquids,
miscibility is the property of liquids to mix in all proportions, forming a
homogeneous solution, and the vapor pressure of miscible liquids can be
determined using Raoult's law
Raoult's law - Correct answer-Pa is the pressure A, Xa is the mole fraction of A, Pb
is the pressure B, Xb is the mole fraction of B (P_t= P_a X_a+P_b X_b )
fractional distillation - Correct answer-a pot, a fractional column, a thermometer, a
condenser, and a receiver
Simple distillation - Correct answer-a pot , a three way connector, a thermometer, a
condenser, and a receiver
boiling chip - Correct answer-both simple and require the aid of a boiling chip, the
chip provides surface area which allows for the liquid to smoothly boil, and adding
the clip to an already boiling liquid will cause the liquid to violently foam out of
the container
Other Hazards - Correct answer-if the pot is allowed to dry it could start to
combust (burn or explode)
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
2026 Questions and Answers
distillation - Correct answer-is a process by which we separate compounds based
on their boiling points (many organic compounds are volatile)
Volatile - Correct answer-is a characteristic of chemical that they exhibit a
relatively high vapor pressure and they have a relatively low boiling point,
Compounds that exhibit a high vapor pressures are more easily evaporated by
applying heat (by applying heat we can separate the more volatile compound form
the less volatile compound)
heat - Correct answer-By applying _____ we can separate the more volatile
compound form the less volatile compound.
cyclohexene - Correct answer-is a six member ring with no unsaturations (double
bonds)
toluene - Correct answer-is a six member ring with alternating unsaturations (a
benzene ring) with one methyl substitution
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, miscible liquids - Correct answer-Two liquids that can dissolve into each other
(must have similar polarities), Cyclohexene and toluene are both miscible liquids,
miscibility is the property of liquids to mix in all proportions, forming a
homogeneous solution, and the vapor pressure of miscible liquids can be
determined using Raoult's law
Raoult's law - Correct answer-Pa is the pressure A, Xa is the mole fraction of A, Pb
is the pressure B, Xb is the mole fraction of B (P_t= P_a X_a+P_b X_b )
fractional distillation - Correct answer-a pot, a fractional column, a thermometer, a
condenser, and a receiver
Simple distillation - Correct answer-a pot , a three way connector, a thermometer, a
condenser, and a receiver
boiling chip - Correct answer-both simple and require the aid of a boiling chip, the
chip provides surface area which allows for the liquid to smoothly boil, and adding
the clip to an already boiling liquid will cause the liquid to violently foam out of
the container
Other Hazards - Correct answer-if the pot is allowed to dry it could start to
combust (burn or explode)
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
