CHEM 162 EXPERIMENT 5 FINAL PAPER EXAM QUESTIONS ACCURATE ANSWERS FULL
SOLUTION
CHEM 162 Experiment 5 Final Paper 2026/2027
Questions and Answers Verified Solutions Latest
Update
Question:
Simple Distillation - Method.
Answer:
1) The solution is heated. The part of the solution that has the lowest boiling point evaporates first 2)
The vapour is then cooled, condensed & is collected 3) The rest of the solution is left behind in the
flask
Question:
Fractional Distillation - Method.
Answer:
separation of a liquid mixture into fractions differing in boiling point (and hence chemical
composition) by means of distillation, typically using a fractionating column.
Question:
Vigreux Column.
Answer:
The apparatus used to create fractional distillation, helps to increase the surface area in which the
solution boils and re-condenses more times in order to increase the purity of the distillate.
Question:
Thermowell.
Answer:
A semi-circle clay bowl instrument used to heat glass instruments at a steady and quick rate. **SET
AT 4 FOR STEADY HEAT**
, Question:
Where do you put the distillate and pot residue when completed with Experiment #1?
Answer:
Blue "non-halogenated" waste bin
Question:
What do you wash glassware with? (Why?).
Answer:
You wash glassware with acetone. It evaporates quickly and it can wash away organic material very
easily.
Question:
Experiment #2: Rules of Solubility in H2O goal.
Answer:
Determine the rules of solubility of organic compounds in water
Question:
Set 1: Polarity.
Answer:
Water is polar, when organic solvents are added to water, if they dissolve, they are also polar. If not,
they are non-polar
Question:
Set 2: Molecular Size.
Answer:
As molecular size increases (tail) solubility decreases. Methanol > Ethanol > 1-Propanol > Butanol
> 1-Hexanol
SOLUTION
CHEM 162 Experiment 5 Final Paper 2026/2027
Questions and Answers Verified Solutions Latest
Update
Question:
Simple Distillation - Method.
Answer:
1) The solution is heated. The part of the solution that has the lowest boiling point evaporates first 2)
The vapour is then cooled, condensed & is collected 3) The rest of the solution is left behind in the
flask
Question:
Fractional Distillation - Method.
Answer:
separation of a liquid mixture into fractions differing in boiling point (and hence chemical
composition) by means of distillation, typically using a fractionating column.
Question:
Vigreux Column.
Answer:
The apparatus used to create fractional distillation, helps to increase the surface area in which the
solution boils and re-condenses more times in order to increase the purity of the distillate.
Question:
Thermowell.
Answer:
A semi-circle clay bowl instrument used to heat glass instruments at a steady and quick rate. **SET
AT 4 FOR STEADY HEAT**
, Question:
Where do you put the distillate and pot residue when completed with Experiment #1?
Answer:
Blue "non-halogenated" waste bin
Question:
What do you wash glassware with? (Why?).
Answer:
You wash glassware with acetone. It evaporates quickly and it can wash away organic material very
easily.
Question:
Experiment #2: Rules of Solubility in H2O goal.
Answer:
Determine the rules of solubility of organic compounds in water
Question:
Set 1: Polarity.
Answer:
Water is polar, when organic solvents are added to water, if they dissolve, they are also polar. If not,
they are non-polar
Question:
Set 2: Molecular Size.
Answer:
As molecular size increases (tail) solubility decreases. Methanol > Ethanol > 1-Propanol > Butanol
> 1-Hexanol
