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What halfreaction takes place at the cathode of a galvanic cell with copper and silver electrodes?
Silver is the cathode (less reactive) and Cobalt is the anode (more reactive).
What is the electrolyte?
If for example the electrolyte was sulphuric acid, hydrogen gas forms at the silver cathode. 2H+2e- --->H2 (is reduced=gains electrons)
* The more reactive metal electrode (cobalt) reacts/is oxidised, forming ions. The electrons flow through the wires to the other metal electrode(silver), where hydrogen ions are reduced to hydrogen gas.
A.Cu(s) → Cu+(aq) + e-C.Co2+(aq) + 2e- → Co(s)
What else can I help you with?
What are inert and active electrodes?
Inert electrodes simply serve as electrical conductors and are unchanged by the cell processes. Active electrodes change during the cell reactions. An example of inert electrodes is platinum in the electrolysis of water. The platinum remains unchanged and the water is split into hydrogen and oxygen. An example of active electrodes is in the electrolysis of copper sulfate solution with copper electrodes. The anode copper is converted into copper ions in the solution, and metallic copper builds up on the cathode. The term active electrode is also used in eeg measurement, here as the opposite to passive electrode. Electrodes are the pads attached to the skin to get readings, and active ones don't need a conductive paste to get a good signal.
How can copper be separated from solution of copper compounds?
Usually in a school experiment, you put copper solution into glass. Then you add Positively and negatively charged sticks which are connected with each other and plugged into electricity, which makes pure copper form on the negatively charged stick.
What is the voltage of a galvanic cell with cu and mg 2.71?
The voltage of a galvanic cell can be calculated using the standard reduction potentials of the half-reactions involved. For a cell with copper (Cu) and magnesium (Mg), the standard reduction potential for Cu²⁺/Cu is +0.34 V, and for Mg²⁺/Mg, it is -2.37 V. The overall cell potential (E°cell) can be calculated as E°(cathode) - E°(anode), resulting in E°cell = 0.34 V - (-2.37 V) = 2.71 V. Therefore, the voltage of the galvanic cell with copper and magnesium is 2.71 V.
What are the metal strips called that are placed in the copper compound solution during electrolysis?
The metal strips are called electrodes. The positive electrode is known as the anode, and the negative electrode is called the cathode. They are used to conduct electricity through the electrolyte solution to facilitate the electrolysis process.
What are the materials for How to make a potato battery?
To make a potato battery, you will need a potato, two different metal electrodes (such as zinc and copper), wire with alligator clips, and a small LED light. The potato serves as the electrolyte in the battery, while the metal electrodes act as the anode and cathode. Connect the electrodes with wires and clip an LED to show the flow of electricity.
What gets oxidized in a electrolytic cell made with Nickel and copper electrodes?
In an electrolytic cell with nickel and copper electrodes, nickel at the anode gets oxidized, losing electrons to form nickel ions. The copper electrode at the cathode gains electrons and gets reduced, forming copper metal. This process allows for the transfer of nickel ions from the anode to the cathode.
Why is zinc negative amd copper positive?
Zinc is more electronegative than copper. As a result, zinc acts as the anion(anode), while copper loses electrons and becomes positive (cathode). Electrons flow from the zinc to the copper ( - to +)
Is copper an anode or cathode?
In a galvanic cell or electrolytic cell, the copper can serve as either an anode or cathode depending on the specific set-up and reaction conditions. An anode is where oxidation occurs, while a cathode is where reduction occurs.
Why does the blue colour remains blue during electrolysis of copper sulphate solution using copper electrodes?
During electrolysis of copper sulfate solution using copper electrodes, the blue color of the solution remains because copper ions from the copper sulfate solution plate onto the cathode, replacing the copper atoms in the electrode. This does not change the color of the solution as the copper ions remain in solution, maintaining the blue color.
What gets reduced in an electrolytic cell with nickel and copper electrodes?
Ni2+
Does a cell with copper and zinc electrodes in an acid electrolyte produce voltages?
Yes, a cell with copper and zinc electrodes in an acid electrolyte will produce voltage because of the difference in their reduction potentials. The zinc will undergo oxidation at the anode, releasing electrons and creating a potential difference with the copper cathode where reduction occurs. This potential difference between the two electrodes generates an electric current.
Why a copper equipment should not possess a small steel bolt?
copper is higher in galvanic series than steel.hence when steel bolt is attached to copper equipment the copper being higher in galvanic series acts as anode getting corroded and steel being lees in galvanic series acts as cathode getting protected. copper equipment gets corroded when steel bolt is attached to it.
If steel and copper were in contact in an electrolyte which would corrode?
In this scenario, copper would corrode because it is lower in the galvanic series compared to steel. When two dissimilar metals are in contact in an electrolyte, the metal higher in the galvanic series (steel) acts as the anode and corrodes, while the metal lower in the series (copper) acts as the cathode and is protected.
What would be the cathode be in a nickel and copper?
Ni(s)
What is the reaction equation of electrolysis of water with copper electrodes?
The reaction equation for the electrolysis of water using copper electrodes is: 2H2O(l) -> 2H2(g) + O2(g). At the cathode, hydrogen gas is produced, while at the anode, oxygen gas is produced. Copper electrodes do not participate in the reaction, they only serve as conductors for the flow of electrons.
What are inert and active electrodes?
Inert electrodes simply serve as electrical conductors and are unchanged by the cell processes. Active electrodes change during the cell reactions. An example of inert electrodes is platinum in the electrolysis of water. The platinum remains unchanged and the water is split into hydrogen and oxygen. An example of active electrodes is in the electrolysis of copper sulfate solution with copper electrodes. The anode copper is converted into copper ions in the solution, and metallic copper builds up on the cathode. The term active electrode is also used in eeg measurement, here as the opposite to passive electrode. Electrodes are the pads attached to the skin to get readings, and active ones don't need a conductive paste to get a good signal.
What would the cathode be in a nickel and copper electrolytic?
Ni(s)
