chemistry-electrolysis
- Created by: bethmoss121101
- Created on: 04-04-18 17:04
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- Electrolysis
- What is it?
- Its the breaking down of a substance using electricity
- An electirccurrent is passed thought an electrolyte causing it to decompose
- An electrolyte is a molten or dissolved ionic compound
- An electirccurrent is passed thought an electrolyte causing it to decompose
- It is the lose of electrons which is an oxidation and the gain of electrons which is reduction
- Its the breaking down of a substance using electricity
- Ions
- The positive ions are called cations
- The cations are in the electrolyte. they move towards the cathode.
- The cathode is the negative electrode
- This is also the reduction which means you lose eletrons
- this creates a flow of charge thought the electrolyet
- This is also a oxidation which means you gain electrons
- this creates a flow of charge thought the electrolyet
- The cations are in the electrolyte. they move towards the cathode.
- The negative ions are called anions
- The anions are in the electrolyte. They move towards the anode.
- The anode is the positive electrode
- This is also a oxidation which means you gain electrons
- The anions are in the electrolyte. They move towards the anode.
- As ions gain and lose electrons they
- The positive ions are called cations
- Half equations
- They show how electrons are transfer during a reaction
- they are really useful to show what's happening at each electrode
- how to write one
- put the thing that is being oxidised or reduced on one side of an arrow
- balance up the number of atoms just like a normal equation
- Then add electrons (written e-)on to one side to balance up the charge
- balance up the number of atoms just like a normal equation
- put the thing that is being oxidised or reduced on one side of an arrow
- How to set up an Electro- chemical cell
- go to page 48 in the book to see the diagram
- solutions
- 1) get two inert(unreactive) electrodes like platinum electrodes
- 2)Clean the surfaces of the electrodes using some sandpaper
- 3) From this point on, be careful not to touch the surfaces of the surfaces of the electrodes with your hands
- 4)Place both electrodes into a beaker filled with your eletrolyte
- 5)Connect the electrodes to a power supply using crocodile clips and wires when you turn the power supply on, a current will flow thought the cell
- 4)Place both electrodes into a beaker filled with your eletrolyte
- 3) From this point on, be careful not to touch the surfaces of the surfaces of the electrodes with your hands
- 2)Clean the surfaces of the electrodes using some sandpaper
- 1) get two inert(unreactive) electrodes like platinum electrodes
- Molten
- 1)Put your solid ionic substances (it will become the electrolyte)in a crucible
- 2)heat the crucible with a Bunsen burner until the solids molten.
- 3)once the solid's molten , dip two clean, inert electrons into the electrolyte
- 2)heat the crucible with a Bunsen burner until the solids molten.
- 1)Put your solid ionic substances (it will become the electrolyte)in a crucible
- This is a circuit made up of an anode, cathode, electrolyte, a power source and the wires to connect the elecrodes
- What is it?
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