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Electrode processes презентация
Содержание
- 1. Electrode processes
- 2. The reactions accompanied by a change
- 3. The particles which accept electrons are called
- 4. Fе2+ + Се4+ ↔ Fе3+ +
- 5. Electrode or redox potential (E) is
- 6. A conductor (metal) immersed into a
- 7. Potential difference between electrodes is known as
- 8. EMF of a chemical reaction is
- 9. The potentials difference that occurs in
- 10. Redox and membrane potential in
The reactions accompanied by a change of atom oxidation number of elements are called oxidation-reduction reactions.
Слайд 1
Zaporizhzhya State Medical University
Analytical Chemistry Department
ELECTRODE PROCESSES
Lecturer: Monaykina Yulia Vitalievna
2016
Слайд 2
The reactions accompanied by a change of atom oxidation number of
elements are called
oxidation-reduction reactions.
oxidation-reduction reactions.
Слайд 3The particles which accept electrons are called oxidizers.
The particles which
donate electrons are called reducers.
Слайд 4
Fе2+ + Се4+ ↔ Fе3+ + Се3+
Oxidized and reduced forms of
one substance involved in the half-reaction compose redox couple:
Fе2+ – ē ↔ Fе3+
Се4+ + ē ↔ Се3+
Fе2+ – ē ↔ Fе3+
Се4+ + ē ↔ Се3+
Слайд 5
Electrode or redox potential (E) is the quantitative measure of redox
power of different redox reactions.
Слайд 6
A conductor (metal) immersed into a solution of its salt is
called
electrode
Potential difference arising on the electrode-solution interfase is called electrode potential
electrode
Potential difference arising on the electrode-solution interfase is called electrode potential
Слайд 7Potential difference between electrodes is known as electromotive force (EMF)
EMF = Ecathode - Eanode
Слайд 8
EMF of a chemical reaction is equal to difference between redox
potentials of
a redox couple
EMF = Eox - Ered
a redox couple
EMF = Eox - Ered
Слайд 9 The potentials difference that occurs in the tissues of living organisms
is called
bioelectric potential.
Слайд 10 Redox and membrane potential in biology and medicine
Many organs,
such as heart, brain, muscles, eyes manifest their function trough electric activity
Therefore such diagnostic methods as electrocardiogram, electro encephalogram, electromyogram and electrooculogram are used
Therefore such diagnostic methods as electrocardiogram, electro encephalogram, electromyogram and electrooculogram are used
