Practical 5

Question 1

Three possible problems w distillation apparatus

Answer 1

No antibumping granules
Open system and no thermometer
Water direction is wrong

Question 2

Antibumping granules

Answer 2

1a add anti-bumping granules
1b to create smaller bubbles / to prevent large bubbles

Question 3

Open system w no thermometer- distillation

Answer 3

2a system should be closed (above flask) to prevent gases escaping
2b should be closed with (bung +) thermometer
2c to allow collection of propanone (only) / to prevent distillation of other components

Question 4

Water direction in condenser

Answer 4

3a water flows in wrong direction through condenser / change water direction
3b condenser not cool enough / not full of water
3c product may not condense / comes through as gas