Making Salts Flashcards
1
Q
Why is sulfuric acid heated in stage 1?
A
To increase speed of reaction
2
Q
How would you know when copper oxide is in excess in stage 2.
A
It stops disappearing
Or there is black suspension
3
Q
Why is the mixture filtered in stage 3?
A
To remove excess copper oxide
4
Q
Why do crystals form when the hot saturated solution is cooled in stage 5?
A
Copper sulfate are less soluble in cold water
5
Q
State the colour of the crystals formed in stage 5
A
Blue
6
Q
Suggest a suitable method of drying crystals
A
On filter paper or tissue paper
Or leave in warm place
