1. KPD4033
TEKNOLOGI DAN INOVASI
DALAM PENDIDIKAN
Ahli Kumpulan:
Noor Emy Liana Daud L20112007112
Nor Azieda Azahari L20112007081
Mahfuza Mansor L20112007049
Zeti Farhana Mohd Lazim L20112007113
Amimah Mohammad Ayub L20112007076

2. ELECTROCHEMISTRY
ELECTROLYSIS IN MOLTEN STATE

3. Objective
Induction Set
Introduction
Molten State
Exercises
Conclusion

4. Objective
AFTER THE LESSON
STUDENTS ARE ABLE TO…..
Induction Set
 Identify the ions present in
Introduction molten compound.
 Name the cations and anions
Molten State
of a molten compound.
Exercises
 Determine the product
formed in cathode and
Conclusion anode.

5. Objective
Induction Set
Introduction
Molten State
Exercises
Conclusion

6. Objective
Do you remember?
Induction Set
 Why solid sodium chloride does
Introduction not conduct electricity?
 Why molten sodium chloride is an
Molten State electrolyte?
 When electrolysis of a molten
Exercises compound, where should anion
and cation move?
Conclusion

7. Objective
ELECTROLYSIS OF A
MOLTEN COMPOUND
Induction Set
Introduction
Molten State
Exercises
Conclusion

8. Steps to identify ion in
Objective
electrolysis of MOLTEN STATE
Induction Set
1. Identify all ion present in molten state
Introduction
2. Identify ion moving to cathode and
anode electrode
Molten State
3. Identify the ion that will be discharge
Exercises in cathode and anode
Conclusion
4. Write half equation in cathode and anode

9. COMPREHENSION

10. Complete the following passage to
describe the electrolysis of lead bromide.
Objective Use the words from the box to complete
the passage.
Induction Set  Ions non-metal lead Electrode
electrons bromine molten metal
positive negative bromide
Introduction
 When lead bromide is molten it contains
free ions of lead and bromine. Lead is
Molten State
a metal so it forms positive ions. Bromine
is a non - metal so it forms negative ions.
The lead ions are attracted to the
Exercises
negative electrode where they
gain electrons to form lead metal.
The bromide ions are attracted to the
Conclusion
positive electrode where they
lose electrons to form bromine gas.

11. Objective
Ready for Quiz???
Induction Set Electrolytes can conduct electricity
because there have free moving…
Introduction
A) Electrons B) Molecules
Molten State
Exercises
C) Atoms D) Ions
Conclusion

12. Objective
Ready for Quiz???
What are the ions present in aqueous
Induction Set solution of silver nitrate?
Introduction A) Silver ions and nitrate ions
Molten State B) Silver ions, nitrate ions and
hydroxide ions
Exercises C) Silver ions, nitrate ions,
hydroxide ions and hydrogen ions
Conclusion
D) Hydroxide ions and hydrogen
ions

13. Ready for Quiz???
Objective
What is the final product produced
Induction Set at anode?
Introduction
A) Sodium B) Chloride ion
Molten State
Exercises C) Sodium Chloride D) Chlorine gas
Conclusion

14. Objective
Ready for Quiz???
Which of the following ions attracted
Induction Set to anode during electrolysis of
aqueous Zinc chloride solution?
Introduction
B) Zinc ion and
A) Zinc ion only.
chloride ion.
Molten State
Exercises C) Zinc ion and D) Chloride ion and
hydrogen ion. hydroxide ion.
Conclusion

15. Objective CONCLUSIONS
Induction Set  Ions present in the compound of
NaCl in molten state are Na+ and Cl-
Introduction  Cations : Na+
Anions : Cl-
Molten State  Product at cathode : Sodium
Product at anode : Chlorine gas
Exercises
Conclusion

17. 1. Identify all ion present in molten state
Electrolysis of a molten compo
ONLY occur 2 ions in the electro
1. Molten 2. Molten PbI2
NaCl • Pb2+
• Na+ • I-
• Cl-

18. 2. Identify ion moving to cathode and
anode electrode
1. Molten 2. Molten PbI2
NaCl • Pb2+
cathode cathode
• Na+ anode
• I- anode
• Cl-

19. 3. Identify the ion that will be discharge
in cathode and anode
1. Molten 2. Molten PbI2
NaCl • Pb
cathode cathode
• Na anode • I2(g) anode
• Cl2(g)

20. 4. Write half equation in cathode and anode
1. Molten NaCl 2. Molten PbI2
• Na+ • Pb2+
Cathode: Cathode:
• Na+ + 2e Na • Pb2+ + 2e Pb
• Cl- • I-
Anode: Anode:
• 2Cl- Cl2 + 2e • 2I- I2 + 2e