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What are the half reaction for a galvanic cell with Ni and mg electrodes?
Wiki User
∙ 6y ago
Ni2+(aq) + 2e- Ni(s) and Mg(s) Mg2+(aq) + 2e-
Anya Kub
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What is the voltage of a galvanic cell made with silver an nickel?
The voltage of a galvanic cell is the difference between the half cell potentials for the two reactions. For silver and nickel, this is about 1 volt.
What are the half reactions for a galvanic cell with Zn and Mg electrodes apex?
Zn2+(aq) +2e- => Zn(s) and Mg(s) => Mg2+(aq) + 2e-
Would a galvanic cell work without a salt bridge?
The electrolyte of a commercial galvanic cell normally extends from anode to cathode without interruption by a salt bridge. A salt bridge is normally a teaching tool to help show that: 1. Galvanic half-cells do not produce voltage 2. Conductors and insulators are not necessarily salt bridges. An electrolyte must extend from anode to cathode before the galvanic cell can produce voltage. 3. The chemical composition of the salt bridge can differ from the electrolytes in the half cells. 4. Ions travel through the salt bridge between the cell's anode and cathode. Salt bridges raise more questions than answers. For example: 1. Can the difference between an electrolyte and a conductor be defined? 2. How do ions quickly move through a solid or a long electrolyte? 3. When salt bridge composition differs from the galvanic cell electrolyte(s), must the salt bridge chemically react with the galvanic cell electrolyte(s)? 4. Why does galvanic cell voltage remain nearly constant while anode to cathode distance doubles.
How does an electrolytic cell differ from a voltaic cell?
A Galvanic cell, or Voltaic cell, named after Luigi Galvani, or Alessandro Volta respectively, is an electrochemical cell that derives electrical energy from chemical reactions taking place within the cell. It generally consists of two different metals connected by a salt bridge, or individual half-cells separated by a porous membrane.An electrolytic cell decomposes chemical compounds by means of electrical energy, in a process called electrolysis; the Greek word lysis means to break up. The result is that the chemical energy is increased. Important examples of electrolysis are the decomposition of water into hydrogen and oxygen, and bauxite into aluminum and other chemicals.
What are redox half reactions?
A redox half reaction is a reduction or an oxidation reaction. He half reaction does not occur by itself it much be coupled so that he electron released for another to be accepted.
What are the half reaction for galvanic cell with Zn and Ni electrodes?
Zn(s)-> Zn2+(aq)+2e- and Ni2+(aq) + 2e- ->Ni(s)
What occurs at the cathode of the galvanic cell?
The reduction half-reaction of a redox reaction
What occurs at the cathode of a galvanic cell?
An oxidation half-reaction
What are the half-reactions for the galvanic cell with Zn and mg electrodes?
Zn2+(aq) + 2e- = Zn(s) and Mg(s) = Mg2+(aq) + 2e-
What are the half-reactions for a galvanic cell with aluminum and gold electrodes?
Al(s) Al3+(aq) + 3e- and Au+(aq) + e- Au(s)
How is an electrolytic cell different from a galvanic cell?
Electrons flow in the opposite direction.
What is the voltage of a galvanic cell made with silver an nickel?
The voltage of a galvanic cell is the difference between the half cell potentials for the two reactions. For silver and nickel, this is about 1 volt.
Which is formed when a standard hydrogen half-cell is connected with a salt bridge to a standard zinc half-cell?
This forms a galvanic (voltaic) cell (battery).
What is the history of the first galvanic cell?
A Galvanic cell, or Voltaic cell, named after Luigi Galvani, or Alessandro Volta respectively, is an electrochemical cell that derives electrical energy from spontaneous redox reaction taking place within the cell. It generally consists of two different metals connected by a salt bridge, or individual half-cells separated by a porous membrane.Volta was the inventor of the voltaic pile, the first electrical battery. In common usage, the word "battery" has come to include a single Galvanic cell, but a battery properly consists of multiple
What are the half reaction for an electrolytic cell with aluminum and gold electrodes?
Type your answer here... Al3+(aq) + 3e- Al(s) and Au(s) Au+(aq) + e-
Which is formed when a standard hydrogen half's is connected with a salt bridge to a standard zinc half's?
This forms a galvanic (voltaic) cell (battery).
What is salt bridge?
A salt bridge is a device used in chemistry laboratories to connect the oxidation and reduction half-cells of a voltaic cell (galvanic cell).
