module 1

Question 1

which way should water enter a condenser

Answer 1

from bottom to top

Question 2

what steps would you do to collect a pure sample of an organic product from a reaction mixture with two layers

Answer 2

separating funnel
dry with anhydrous inorganic salt
redistilation (fractional)

Question 3

what should you include for a diagram of reflux

Answer 3

pear shaped flask
heat source
condenser (water flow bottom to top)
open system (no lid)

Question 4

eg of anhydrous salt you can use to fry a solution?

Answer 4

MgSO4
or CaCl2

Question 5

Why may you want to titrate something against a solution with a small concentration?

Answer 5

So that you get a big titre which leads to a small percentage error

Question 6

How would you draw the setup for filtration under reduced pressure

Answer 6

Büchner funnel with filter paper (label)
Funnel stoppered with a rubber bung on either side as it goes into Büchner flask (which is a flask with a side arm - label)
Draw an arrow saying to vacuum pump out of the side arm

Question 7

1 tonne in grams

Answer 7

1,000,000g
1x10^6