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1.
Mercury cadmium amalgam -
covered on its surface with a paste of cadmium sulphate crystals acts as the cathode.
2.
Pure mercury -
covered with a paste of mercurous sulphate acts as the anode.
3.
Cadmium sulphate -
acts as the electrolyte
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Why is graphite used as an electroed in dry cells?
Dry cell graphite electrode when treated with permanganate can be used as a hydrogen ion sensor. where activated dry cell graphite electrode seem to be suitable as potentiometric indicator electrodes. :)
Why in conductivity cell pt electrode is used instead of cu electrode?
Since Pt is less chemically active, the treat of getting corroded is decreased.
What 2 fluids make up Battery electrolyte?
Chemistry is the driving force behind the magics of batteries.A battery is a package of one or more galvanic cells used for the production and storage of electric energy by chemical means. A galvanic cell consists of at least two half cells, a reduction cell and an oxidation cell. Chemical reactions in the two half cells provide the energy for the galvanic cell operations.Each half cell consists of an electrode and an electrolyte solution. Usually the solution contains ions derived from the electrode by oxidation or reduction reaction.We will make this introduction using a typical setup as depicted here. The picture shows a copper zinc galvanic cell (battery).A galvanic cell is also called a voltaic cell. The spontaneous reactions in it provide the electric energy or current.Two half cells can be put together to form an electrolytic cell, which is used for electrolysis. In this case, electric energy is used to force nonsponaneous chemical reactions.
Why is standard hydrogen electrode called reversible electrode?
Depending on the other cell used, it can turn H+ ions into hydrogen gas, or it can turn hydrogen gas into H+ ions. Thus it is reversible.
Why does a mercury cell give constant voltage throughout its life?
Because the electrolyte KOH used is not consumed in the reaction.
What is the name of liquid in batteries?
electrolyte When electrodes are placed in an electrolyte and a voltage is applied, the electrolyte will conduct electricity. In batteries, two metals with different electron affinities are used as electrodes; electrons flow from one electrode to the other outside of the battery, while inside the battery the circuit is closed by the electrolyte's ions. Here the electrode reactions convert chemical energy to electrical energy.
What are the definition of electrodes?
An electrode is an electrical conductor used to make contact with a nonmetallic part of a circuit (e.g. a semiconductor, an electrolyte or a vacuum).
What kind of material is used to make the positive electrode of a dry cell?
The positive electrode is a graphite rod (elemental carbon).
What is the name of a chemical used between the electrodes in a cell or battery?
Electrolyte
Why is graphite used as an electroed in dry cells?
Dry cell graphite electrode when treated with permanganate can be used as a hydrogen ion sensor. where activated dry cell graphite electrode seem to be suitable as potentiometric indicator electrodes. :)
What impact did Michael Faraday to the world?
He created the technique and apparatus used for electrolysis. And he coined the terms anode, cathode, cation, anion, electrode and electrolyte. YOUR WELCOME!
Why in conductivity cell pt electrode is used instead of cu electrode?
Since Pt is less chemically active, the treat of getting corroded is decreased.
Can solid sodium chloride be used as an electrolyte in a cell?
Only in solution or melted.
Difference between dry cell and wet cell?
a dry cell is a cell that has electrolyte that is a paste a wet cell is a cell that has a liquid electrolyte -sads
What influences the amount of voltage that comes out a fruit?
The voltage of any electrochemical cell is entirely dependent on the two different electrode materials, not the type of electrolyte.Take the same electrodes and put them in anything containing an electrolyte: e.g. any fruit, a potato, salt water, baking soda solution, vinegar, and you will get the same voltage from the cell.The relevant property of the electrode materials is called electronegativity.
What happens when sodium ions come in contact with the negative electrode in a cell used for electrolysis?
the world end
Which kind of fuel does a fuel cell have?
water which is an electrolyte in this case , or hydrogen in the water is used and burned
