EXPERIMENT 4 (distillation)

Question 1

Most common method for separating and purifying volatile liquids is __

Answer 1

Distillation

Question 2

When there is only one volatile compound, or when one the liquids has a boiling point well below the others, a ___ is used

Answer 2

Simple distillation

Question 3

If there are two or more liquid components, which have boiling points near each other, a ____ must be used

Answer 3

Fractional distillation

Question 4

A ___ flask is used for distillation pot, and an ___ flasks as the receiver

Answer 4

Distilling flask
Erlenmeyer flask

Question 5

When boiling an organic compound, always include ___ boiling stones to keep the solution boiling smoothly and to prevent “ ___” of the liquid

Answer 5

4-5
Bumping

Question 6

Record the temperature at which the ___ distillate appears and for every minute of the distillation

Answer 6

First

Question 7

Stop the distillation if the alcohol solution stops ___ or when the ___ of the distillate collected is more or less ___ to the actual volume of the alcohol mixture (do not let distillation pot go DRY)

Answer 7

Bubbling
Volume
Equal

Question 8

After the distillation stopped, let the entire set up cool for about ___ mins.

Answer 8

10

Question 9

Determine the % recovery of alcohol (Formula)

Answer 9

% recovery= Volume of the distillate/ volume of the alcohol in the mixture × 100

Question 10

Determine the density of the alcohol by adding exactly ___ mL of your distillate to a pre-weighed dry 10 mL graduated cylinder.

Answer 10

10