Post Lab 5.1

Fractional Distillation

Blue Dots pg. 92

3) What other tests might you make to help identify these substances?

YOU MIGHT DO A FREEZING/MELITING POINT TEST or A SOLUBILITY TEST.


Gray Box pg. 92

1) In what characteristic property must two liquids differ if a mixture of them is to be separated by fractional distillation?

BOILING POINT

2) In the fractional distillation of liquids, which fraction has the highest boiling point?

HIGHEST=FRACTION 3

LOWEST=FRACTION 1

3) I=F II=F III=F and E IV=E

4) How would this, a student collecting two fractions and changing test tubes at the end of the first plateau, affect the composition of the two fractions?

II would be a mixture