Electrolysis

Question 1

What is Force of attraction of oppositely charged ions?

Answer 1

Electrostatic attraction

Question 2

What is Electrolysis?

Answer 2

Splitting up an Ionic Compound using Electrons

Question 3

Why does Electrolysis need aqueous or molten solutions?

Answer 3

Because the Ions are free to move

Question 4

What does Electrolysis need?

Answer 4

a power supply (DC)
Anode
Cathode

Question 5

what do you name the electrodes (hint: PANIC)

Answer 5

Positive Electrode is
Anode
Negative Electrode
Is
Cathode

Question 6

During Electrolysis, Positive Ions…

Answer 6

Move to the Cathode

Question 7

During Electrolysis, Negative Ions…

Answer 7

Move to the Anode

Question 8

What is Electrolyte?

Answer 8

A substance containing dissolved charged particles

Question 9

What does Oxidation and Reduction do? (Hint: OILRIG)

Answer 9

Oxidation
Is
Loss of Electrons
Reduction
Is
Gain of Electrons

Question 10

What are Ions?

Answer 10

Charged Particles containing Ionic Substances

Question 11

During Electrolysis, if the Positive ion is lower than Hydrogen…

Answer 11

A Metal is formed

Question 12

During Electrolysis, if the Positive ion is higher than Hydrogen…

Answer 12

Hydrogen Gas is formed

Question 13

During Electrolysis, if Halogens aren’t formed…

Answer 13

Oxygen is formed

Question 14

What is Brine?

Answer 14

Very concentrated SaltWater

Question 15

What products are made when using Electrolysis on Brine?

Answer 15

Hydrogen Chloride and Sodium Hydroxide

Question 16

What can Chlorine be used for?

Answer 16

Disinfectant
PVC Plastic
Bleach

Question 17

What can Hydrogen be used for?

Answer 17

Fuel and Margarine

Question 18

What can Sodium Hydroxide be used for?

Answer 18

Bleach
Paper
Soap

Question 19

What are the 4 properties of Aluminium and its alloy

Answer 19

Low Density
Resists corrosion
Strong
Malleable

Question 20

What is Alumina/Bauxite

Answer 20

Raw Aluminium Oxide

Question 21

What is Aluminium Oxide Dissolved in?

Answer 21

Molten Cryolite

Question 22

Why is Alumina dissolved in Molten Cryolite?

Answer 22

Lowers Melting Point

Question 23

What is the melting point of Alumina?

Answer 23

over 2000 Decrees Celsius

Question 24

What are Electrodes made out of?

Answer 24

Graphite

Question 25

How hot are the electrodes during extracting Aluminium?

Answer 25

955 Degrees Celsius

Question 26

How is the Aluminium removed during Electrolysis?

Answer 26

It's sucked out

Question 27

How much Aluminium can one cell make in one hour?

Answer 27

50kg per hour

Question 28

What is the Equipment List for the required Practical of Electrolysis?

Answer 28

Power Supply Measuring Cylinder Wires Beaker Electrodes Pegs Paper Towel Copper Sulphate Balance Stopwatch

Question 29

What's the risk of High Power?

Answer 29

Electric Shock

Question 30

How do you control the High Power?

Answer 30

Lower the Voltage

Question 31

What's the risk of Copper Sulphate?

Answer 31

It could get in your eyes

Question 32

How do you avoid the risk of Copper Sulphate?

Answer 32

Wear Goggles

Question 33

What happens if you don't dry the Electrode with Copper during the Electrolysis Required Practical?

Answer 33

It would increase the mass

Question 34

What happens if you dry the Electrode with Copper too much during the Electrolysis Required Practical?

Answer 34

It will remove the Copper from the Electrode

Question 35

Why does the Balance need to be in 0.00g?

Answer 35

Increased Precision

Question 36

What's the resolution of the Electrolysis required Practical?

Answer 36

0.0005g

Question 37

What's the risk of using Copper Chlorine during Electrolysis?

Answer 37

Can Kill you as Chlorine can go through your airways

Question 38

How do you control using Copper Chlorine for Electrolysis Practical?

Answer 38

You don't and instead use Copper Suphate

Question 39

What's the range of the Electrolysis required Practical?

Answer 39

0.8M

Question 40

What is Molten Cryolite?

Answer 40

An Aluminium Compound with a lower melting point than Aluminium Oxide