Making Salts

Question 1

Salt

Answer 1

A salt is made by the neutralisation of an acid with a base.

Question 2

Sulphuric acid

Answer 2

40cm3 and then pour into beaker

Question 3

Sulphuric acid

Answer 3

Heat beaker with bunsen burner.

Question 4

Base

Answer 4

Any material that will neutralise an acid and form a salt.

Question 5

Copper oxide

Answer 5

Add excess copper oxide to sulphuric acid.

Question 6

Copper oxide and sulphuric acid

Answer 6

Chemical reaction-forms copper sulfate
Liquid turns boue

Question 7

Copper oxide to be removed with water

Answer 7

So crystals are pure

Question 8

Copper oxide to be filtered

Answer 8

Filter paper folded twice to make a cone. Put into funnel. Pour copper sulfate solution.

Question 9

Crystals need to be dry by

Answer 9

Evaporating water

Question 10

Where does the water need to be evaporated?

Answer 10

In an evaporating basin

Question 11

Where does the evaporating basin need to be heated?

Answer 11

Over a beaker of boiling water. The bunsen burner goes underneath the beaker.

Question 12

How does the evaporation work?

Answer 12

As the water boils the steam will heat the bottom of the evaporating basin and the water from the crystals will evaporate.