Electrochemistry- Term 1, Year 12

Curtis Browne
Mind Map by Curtis Browne, updated more than 1 year ago
Curtis Browne
Created by Curtis Browne about 6 years ago
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Chemistry (Electrochemistry - Term 1) Mind Map on Electrochemistry- Term 1, Year 12, created by Curtis Browne on 16/03/2014.
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Electrochemistry- Term 1, Year 12
1 Electricity
1.1 The flow of electrons
1.2 Measured in Volts
2 Electron transfer reactions/Redox
2.1 Oxidation
2.1.1 Loss of electrons
2.1.2 Oxidising agent
2.1.2.1 Electron acceptor
2.1.2.2 Is reduced
2.2 Reduction
2.2.1 Gain of electrons
2.2.2 Reducing agent
2.2.2.1 Electron donor
2.2.2.2 Is oxidised
3 Oxidation Numbers
3.1 1. Element = 0
3.2 2. Monoatomic ion = 0
3.3 3. Oxygen -2, peroxide -1
3.4 4. Hydrogen +1, metal hydride -1
3.5 5. Sum ON compound = 0
3.6 6. Sum ON polyatmoic ion = charge
3.7 Increase indicates loss of electrons
3.8 Decrease indicates gain of electrons
4 Balancing Redox Equations
4.1 Oxidation Number Change Method
4.2 The Half Reaction Method
4.2.1 Acidic solution
4.2.2 Basic solution
5 Galvanic/Voltaic Cell
5.1 Salt bridge
5.1.1 KCl - Potassium Chloride
5.2 Electrodes
5.2.1 Anode
5.2.2 Cathode
5.3 Electrolyte
5.4 Cell Potential
5.4.1 Also called ElectroMotive Force (emf)
5.4.2 Ecell = Reduction Potential + Oxidation Potential
5.4.3 Calculated under standard conditions
5.4.3.1 25 degrees Celsius
5.4.3.2 1 atm of pressure for all gases
5.4.3.3 1M concentration for all ions
6 Corrosion
6.1 Rusting - Iron
6.1.1 1. Iron atoms to Iron (II) ions
6.1.2 2. Iron (II) ions to Iron (III) ions
6.2 Loss of electrons
6.3 Dry corrosion
6.4 Wet corrosion
6.5 Preventatives
6.5.1 Physical Protection
6.5.1.1 Paint
6.5.1.2 Oil or grease
6.5.1.3 Plastic coating
6.5.1.4 Tin plating
6.5.1.5 Galvanising
6.5.1.6 Electroplating
6.5.1.7 Cathodic Protection
6.5.2 Chemical Protection
6.5.2.1 Sacrificial Protection
6.5.2.2 Alloying
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