Practicals

Question 1

Distillation of inks

Answer 1

Heat up water and installation gently
Walsall operate first and travel into fractionating column and into condenser
Condenser water calls and condenses and is collected in the conical flask

Question 2

Making copper sulphate crystals

Answer 2

Filter to remove the excess copper oxide
Gently heat copper sulphate solution
Stop heating on most liquid has evaporated and crystals form
Allow to crystallise
Pat dry with filter paper

Question 3

Neutralisation

Answer 3

Add acid to Beaker
Record PH using universal indicator paper
Add 0.3 g of antacid to acid
Record pH again (add it to spotting tile)
Repeat adding up with 0.3 g of antacid at a time – stop adding after 2.4 g

Question 4

Purification of copper using electrolysis

Answer 4

Add copper sulphate to beaker
Weigh mass of copper electrodes
Attach pure and impure copper electrodes to powerpack
Add electrodes to solution
Every two min’s, reweigh the copper electrodes
negative Electrode gained mass as it gains copper ions

Question 5

Moles, mass, RAM

Answer 5

Mass = moles x RAM

Question 6

Concentration,mass,volume

Answer 6

Mass= concentration x volume

Question 7

Concentration, moles, volume

Answer 7

Moles= Concentration x volume