Electrolysis With Copper Electrodes Core Practical

Question 1

Step 1:

Fill a beaker with …..?….. cm3 of copper sulphate solution

Answer 1

50.0cm3

Question 2

Step 2:

Wash and clean electrodes with …..?…..

Answer 2

Emery paper

Question 3

Step 3:

Record …..?….. of copper electrodes

Answer 3

Mass

Question 4

Step 4:

Change variable resistor until it reads …..?….. A

Answer 4

0.2

Question 5

Step 5:

Turn power pack to 4V for …..?….. minutes

Answer 5

5 minuets

Question 6

Step 6:

Record number of …..?…..

Answer 6

Amps

Question 7

Step 7:

Rinse each electrode with …..?….., dry it and record …..?…..

Answer 7

1 - propane

2 - mass

Question 8

Step 8:
Repeat steps …..?….. - 7 for

0.4 A
0.6 A
…..?….. A

Answer 8

1 - 2

2 - 0.8