Lab 4: Steam Distillation. Carvone.

Question 1

Advantages of steam distillation

Answer 1

Distill liquids with high boiling points at temperatures greator than 100

Avoids high temp simple/fractional could cause decomposition

Question 2

Requirements

Answer 2

1. non reactive with water
2. immicible in water
3. Stable at 100
4. Partial pressure greater than 5 torr at 100 degrees

Question 3

Raoutls law

Answer 3

Since x is not soluble in water. Px does not depend on its mole fraction in mixture

Question 4

Dalton’s law

Answer 4

Total partial pressure is sum of partial pressure Pt=Patm

The total vapor pressure is always higher than the most volatile component always water

The Bp of mixture is always lower than the lowest boiling component alway water

Question 5

Properties of enantiomers

Answer 5

All same. But differ in how they interact with plane polarized light. Different optical properties.

Enantiomers will rotate the plane of light the same magnitude but in opposite directions

Question 6

Formula for calculating compositon of condensate

Answer 6

Grams A divide by Grams B=

Pa)(molar mass A)/ (Pb)(molar mass B