IB Chemistry on Electrolysis, Electrolytic Cell and Factors Affecting Discharge of Ions
Upcoming SlideShare
Loading in...5
×
 

IB Chemistry on Electrolysis, Electrolytic Cell and Factors Affecting Discharge of Ions

on

  • 10,636 views

IB Chemistry on Electrolysis, Voltaic Cell and factors affecting discharge of ions during electrolysis

IB Chemistry on Electrolysis, Voltaic Cell and factors affecting discharge of ions during electrolysis

Statistics

Views

Total Views
10,636
Views on SlideShare
6,279
Embed Views
4,357

Actions

Likes
3
Downloads
112
Comments
0

41 Embeds 4,357

http://lawrencekok.blogspot.com 2298
http://lawrencekok.blogspot.hk 335
http://lawrencekok.blogspot.co.uk 303
http://lawrencekok.blogspot.ca 259
http://lawrencekok.blogspot.com.au 242
http://lawrencekok.blogspot.in 228
http://lawrencekok.blogspot.sg 137
http://lawrencekok.blogspot.kr 90
http://lawrencekok.blogspot.co.nz 76
http://lawrencekok.blogspot.com.es 30
http://lawrencekok.blogspot.se 30
http://lawrencekok.blogspot.nl 26
http://lawrencekok.blogspot.de 24
http://lawrencekok.blogspot.ch 22
http://lawrencekok.blogspot.dk 19
http://lawrencekok.blogspot.com.tr 19
http://lawrencekok.blogspot.no 17
http://lawrencekok.blogspot.pt 16
http://lawrencekok.blogspot.gr 16
http://lawrencekok.blogspot.ie 15
http://lawrencekok.blogspot.ae 14
http://lawrencekok.blogspot.com.br 14
http://lawrencekok.blogspot.tw 13
http://lawrencekok.blogspot.jp 13
http://lawrencekok.blogspot.mx 12
http://lawrencekok.blogspot.it 11
http://lawrencekok.blogspot.fr 11
http://lawrencekok.blogspot.cz 9
http://lawrencekok.blogspot.ro 8
http://lawrencekok.blogspot.fi 8
http://lawrencekok.blogspot.ru 7
http://lawrencekok.blogspot.hu 7
http://lawrencekok.blogspot.com.ar 6
http://lawrencekok.blogspot.be 6
http://lawrencekok.blogspot.co.il 5
http://lawrencekok.blogspot.co.at 3
http://lawrencekok.blogspot.sk 3
http://www.edmodo.com 2
http://www.lawrencekok.blogspot.co.uk 1
http://webcache.googleusercontent.com 1
http://translate.googleusercontent.com 1
More...

Accessibility

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

CC Attribution-NonCommercial-ShareAlike LicenseCC Attribution-NonCommercial-ShareAlike LicenseCC Attribution-NonCommercial-ShareAlike License

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

IB Chemistry on Electrolysis, Electrolytic Cell and Factors Affecting Discharge of Ions IB Chemistry on Electrolysis, Electrolytic Cell and Factors Affecting Discharge of Ions Presentation Transcript

  • Video Tutorial on Electrolysis, Voltaic Celland Factors Affecting Discharge of Ionsduring Electrolysis. Prepared by Lawrence Kok http://lawrencekok.blogspot.com
  • Video on Standard Electrode Potential and Voltaic CellGalvanizing Iron with Zinc Excellent Silver crystal formation Electrolysis of water Electrolysis of water Electrolysis of KI
  • Electrolytic Cell Vs Voltaic CellDifferences between electrolytic Cell and Voltaic CellSimilarity between both Cells• Both Contain Electrolyte, Anode and Cathode• Electrons flow from ANODE (OXIDATION) → CATHODE ( REDUCTION)
  • Electrolytic Cell Vs Voltaic CellElectrolytic Cell molten Copper (II) Chloride Voltaic Cell Zn/Cu half cell
  • Electrolytic Cell Vs Voltaic CellElectrolytic Cell molten Copper (II) Chloride Voltaic Cell Zn/Cu half cellAnode (+ve) Oxidation) Cathode (-ve) (Reduction) Cathode (+ve)(Reduction) Anode (-ve) (Oxidation)
  • Electrolytic Cell using molten PbBr2Anion to Anode Cation to Cathode Electrolytic Cell using molten CaCI2Anion to Anode Cation to Cathode
  • Electrolytic Cell using molten PbBr2 Lead at CathodeBromine at Anode Anion to Anode Cation to Cathode Electrolytic Cell using molten CaCI2 Chlorine at Anode Calcium at Cathode Anion to Anode Cation to Cathode
  • Factors Affecting Discharge of Ions During Electrolysis Standard Electrode Potential of Different Metal Ions
  • Electrolysis of Aqueous Sodium Chloride Electrolysis of aqueous NaCI Anode (+ve) Cathode (-ve)Which anion will be Oxidised ? Which cation will be Reduced ?
  • Electrolysis of Aqueous Sodium Chloride Electrolysis of aqueous NaCIO2 at Anode H2 at Cathode Anode (+ve) Cathode (-ve) Which anion will be Oxidised ? Which cation will be Reduced ? OH - ion will be oxidised to O2 gas H+ ion will be reduced to H2 gas
  • Electrolysis of Aqueous Sodium Iodide Electrolysis of aqueous Sodium Iodide (NaI)Anode (+ve) Cathode (-ve) Which anion will be Oxidised at Anode? Which cation will be Reduced at Cathode ?
  • Electrolysis of Aqueous Sodium Iodide Electrolysis of aqueous Sodium Iodide (NaI) Anode (+ve) Cathode (-ve)I2 at Anode H2 at Cathode Which anion will be Oxidised at Anode? Which cation will be Reduced at Cathode ? I - ion will be oxidised to I2 gas H+ ion will be reduced to H2 gas
  • Electrolysis of Aqueous Silver Nitrate Electrolysis of aqueous Silver Nitrate (AgNO3) Cathode (-ve)Anode (+ve) Which anion will be Oxidised at Anode? Which cation will be Reduced at Cathode ?
  • Electrolysis of Aqueous Silver Nitrate Electrolysis of aqueous Silver Nitrate (AgNO3) Cathode (-ve)Anode (+ve) Ag formedO2 formed Which anion will be Oxidised at Anode? Which cation will be Reduced at Cathode ? OH - ion will be oxidised to O2 gas Ag+ ion will be reduced to Ag metal
  • Electrolysis of Aqueous Copper (II) Chloride Electrolysis of Copper (II) Chloride Cathode (-ve)Anode (+ve)Which anion will be Oxidised at ANODE? Which cation will be Reduced at CATHODE?
  • Electrolysis of Aqueous Copper (II) Chloride Electrolysis of Copper (II) Chloride Cathode (-ve) Anode (+ve)Oxygen at Anode Copper at Cathode Which anion will be Oxidised at ANODE? Which cation will be Reduced at CATHODE? OH - ion will be oxidised to O2 gas Cu2+ion will be reduced to Cu metal
  • Electrolysis of Aqueous Copper (II) Chloride Electrolysis of Copper (II) Bromide Cathode (-ve) Anode (+ve) Which cation will be Reduced at CATHODE?Which anion will be Oxidised at ANODE?
  • Electrolysis of Aqueous Copper (II) Chloride Electrolysis of Copper (II) Bromide Cathode (-ve) Anode (+ve) Bromine at Anode Copper at Cathode Which cation will be Reduced at CATHODE? Which anion will be Oxidised at ANODE?Conclusion:• Cation to Cathode – Gain electron (Reduction) – More (+ve) E red will be preferred• Anion to Anode – Lose electron (Oxidation) – More (+ve) E oxi will be preferred
  • Electrolysis of Aqueous Potassium Iodide Electrolysis of aqueous Potassium Iodide (KI) Cathode (-ve) Anode (+ve)Which anion will be Oxidised at Anode? Which cation will be Reduced at Cathode ?
  • Electrolysis of Aqueous Potassium Iodide Electrolysis of aqueous Potassium Iodide (KI) Cathode (-ve) Anode (+ve)I2 at Anode H2 at Cathode Which anion will be Oxidised at Anode? Which cation will be Reduced at Cathode ? I - ion will be oxidised to I2 gas H+ ion will be reduced to H2 gas
  • Electrolysis of Aqueous Potassium Sulphate Electrolysis of aqueous Potassium Sulphate (K2SO4) Cathode (-ve)Anode (+ve)Which anion will be Oxidised at Anode? Which cation will be Reduced at Cathode?
  • Electrolysis of Aqueous Potassium Sulphate Electrolysis of aqueous Potassium Sulphate (K2SO4) Cathode (-ve) Anode (+ve) O2 at Anode H2 at Cathode Which anion will be Oxidised at Anode? Which cation will be Reduced at Cathode? OH - ion will be oxidised to O2 gas H+ ion will be reduced to H2 gasConclusion:• Cation to Cathode – Gain electron (Reduction) – More (+ve) E red will be preferred• Anion to Anode – Lose electron (Oxidation) – More (+ve) E oxi will be preferred
  • Electrolysis of Aqueous Sulphuric Acid Electrolysis of aqueous Sulphuric Acid (H2SO4) Cathode (-ve)Anode (+ve)Which anion will be Oxidised at Anode? Which cation will be Reduced at Cathode ?
  • Electrolysis of Aqueous Sulphuric Acid Electrolysis of aqueous Sulphuric Acid (H2SO4) Cathode (-ve) Anode (+ve)O2 at Anode H2 at Cathode Which anion will be Oxidised at Anode? Which cation will be Reduced at Cathode ? OH - ion will be oxidised to O2 gas H+ ion will be reduced to H2 gasConclusion:• Cation to Cathode – Gain electron (Reduction) – More (+ve) E red will be preferred• Anion to Anode – Lose electron (Oxidation) – More (+ve) E oxi will be preferred
  • Factors Affecting Discharge of Ions During Electrolysis Concentration of Different Metal Ions
  • Electrolysis of DILUTED vs CONCENTRATED Copper (II) Chloride DILUTED Copper (II) ChlorideWhich anion will be Oxidised at ANODE? Which cation will be Reduced at CATHODE? Concentrated Copper (II) ChlorideWhich anion will be Oxidised at ANODE? Which cation will be Reduced at CATHODE?
  • Electrolysis of DILUTED vs CONCENTRATED Copper (II) Chloride DILUTED Copper (II) ChlorideOxygen at Anode Copper at Cathode Which anion will be Oxidised at ANODE? Which cation will be Reduced at CATHODE? OH - ion will be oxidised to O2 gas Cu 2+ ion will be reduced to Cu metal Concentrated Copper (II) ChlorideChlorine at Anode Copper at Cathode Which anion will be Oxidised at ANODE? Which cation will be Reduced at CATHODE? CI - ion will be oxidised to CI2 gas Cu 2+ ion will be reduced to Cu metal
  • Electrolysis of DILUTED vs CONCENTRATED Sodium Chloride DILUTED Sodium ChlorideWhich anion will be Oxidised at ANODE? Which cation will be Reduced at CATHODE? Concentrated Sodium Chloride Which anion will be Oxidised at ANODE? Which cation will be Reduced at CATHODE?
  • Electrolysis of DILUTED vs CONCENTRATED Sodium Chloride DILUTED Sodium ChlorideOxygen at Anode Hydrogen at Cathode Which anion will be Oxidised at ANODE? Which cation will be Reduced at CATHODE? OH - ion will be oxidised to O2 gas H+ ion will be reduced to H2 gas Concentrated Sodium ChlorideChlorine at Anode Hydrogen at Cathode Which anion will be Oxidised at ANODE? Which cation will be Reduced at CATHODE? CI - ion will be oxidised to CI2 gas H+ ion will be reduced to H2 gas
  • Factors Affecting Discharge of Ions During Electrolysis Types of Electrodes Used
  • Electrolysis of Copper (II) Chloride using different Electrodes Copper (II) Chloride with CARBON ELECTRODEWhich anion will be Oxidised at ANODE? Which cation will be Reduced at CATHODE? Copper (II) Chloride with COPPER ELECTRODE Which anion will be Oxidised at ANODE?Which cation will be Reduced at CATHODE?
  • Electrolysis of Copper (II) Chloride using different Electrodes Copper (II) Chloride with CARBON ELECTRODEOxygen at Anode Copper at Cathode Which anion will be Oxidised at ANODE? Which cation will be Reduced at CATHODE? OH - ion will be oxidised to O2 gas Cu 2+ ion will be reduced to Cu metal Copper (II) Chloride with COPPER ELECTRODECopper at Cathode Copper dissolve at Anode Which anion will be Oxidised at ANODE? Which cation will be Reduced at CATHODE? Cu 2+ ion will be reduced to Cu metal Copper Anode will oxidised to Cu 2+ ions
  • Electrolysis of Silver Nitrate using different Electrodes Silver Nitrate with CARBON ELECTRODEWhich anion will be Oxidised at ANODE? Which cation will be Reduced at CATHODE? Silver Nitrate with SILVER ELECTRODEWhich cation will be Reduced at CATHODE? Which anion will be Oxidised at ANODE?
  • Electrolysis of Silver Nitrate using different Electrodes Silver Nitrate with CARBON ELECTRODEOxygen at Anode Silver at Cathode Which anion will be Oxidised at ANODE? Which cation will be Reduced at CATHODE? OH - ion will be oxidised to O2 gas Ag+ ion will be reduced to Ag metal Silver Nitrate with SILVER ELECTRODE Silver at Cathode Silver dissolve at Anode Which cation will be Reduced at CATHODE? Which anion will be Oxidised at ANODE? Ag+ ion will be reduced to Ag metal Silver Anode will oxidised to Ag+ ions
  • AcknowledgementsThanks to source of pictures and video used in this presentationThanks to Creative Commons for excellent contribution on licenseshttp://creativecommons.org/licenses/Prepared by Lawrence KokCheck out more video tutorials from my site and hope you enjoy this tutorialhttp://lawrencekok.blogspot.com