Making Copper Sulphate Experiment

Question 1

What is the first step of the making copper sulphate and why? (2 points)

Answer 1

• pour 25 cm cubed sulfuric acid into a beaker
• reason= a sulfate salt is being made

Question 2

What is the second step of the making copper sulphate experiment and why? (2 points)

Answer 2

• heat the acid gently with Bunsen
• reason= to speed up the reaction

Question 3

What is the third step of the making copper sulphate experiment and why? (2 points)

Answer 3

• add copper oxide a spatula at a time
• reason= to neutralise and make copper sulphate

Question 4

What is the fourth step of the making copper sulphate experiment and why? (2 points)

Answer 4

• add copper oxide until no more copper oxide will dissolve
• reason= to make sure the acid is neutral

Question 5

What is the fifth step in the making copper sulphate experiment and why? (2 points)

Answer 5

• filter the solution
• reason= to remove the excess insoluble copper oxide

Question 6

What is the sixth step of the making copper sulphate experiment and why? (2 points)

Answer 6

• heat the filtrate by using a water bath or electric heater to remove some of the water
• reason= to obtain a more concentrated salt solution

Question 7

What is the seventh (last step) of the making copper sulphate experiment and why? (2 points)

Answer 7

• leave the solution to cool
• reason= allow salt crystals to form

Question 8

How long should you leave the solution to allow it to form crystals?

Answer 8

Leave the solution to cool for ATLEAST 24 HOURS to allow it to form crystals